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Fulfillment SLAs Explained: What Delivery Promises Should Your Ecommerce Store Make?
Fulfillment SLAs Explained: What Delivery Promises Should Your Ecommerce Store Make?
Er Cai Fang
Senior Product Manager
What is a fulfillment SLA and how do you set one? Learn the difference between fulfillment and delivery time, how Shopee and Lazada SLAs work, and how to make promises you can keep.
"Ships within 1–2 business days." "Delivered in 3–5 days." "Express shipping available."
These are the delivery promises customers read before they decide to buy. They are also operational commitments, and if you miss them consistently, the consequences extend well beyond a bad review.
Platform penalty ratings drop. Seller scores fall. And buyers choose someone else next time.
Most ecommerce sellers in Singapore understand that delivery matters. Fewer have a clear framework for setting delivery promises they can actually keep. This post breaks down what fulfillment SLAs are, how platform SLAs on Shopee and Lazada set the floor, and how to define delivery promises that match your real operational capacity.
Fulfillment SLA vs Delivery SLA: The Difference Most Sellers Miss
These two terms are often used interchangeably. They are not the same thing.
Fulfillment SLA is the time from when a customer places an order to when it leaves your hands, picked, packed, labeled, and handed to the courier or dropped at a collection point.
Delivery SLA is the time from when the courier takes possession to when the parcel arrives at the customer's door.
The customer-facing delivery promise is the sum of both.
If your fulfillment takes 24 hours and your courier delivers the same-day or next-day, you can promise delivery within 2 days. If your fulfillment takes 3 days because orders are batched, packing is manual, or stock needs to be located, then your total delivery window is at least 4 days, regardless of how fast your courier is.
The problem: most sellers only think about the courier leg. They pick a fast courier, advertise fast delivery, and then miss the promise because the constraint was always in their own warehouse, not on the road.
How Platform SLAs Work: Shopee, Lazada, and TikTok Shop
Singapore's major marketplaces set minimum fulfillment requirements. These are non-negotiable, they define the floor your operation must consistently meet.
Shopee: Ships-By Deadline and LSR
Shopee requires sellers to arrange shipment within a set window after an order is placed typically 2 business days for most categories, though this can vary by category and seller tier. Beyond the ships-by deadline, Shopee tracks your Late Shipment Rate (LSR).
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LSR = the percentage of orders not shipped by the required deadline within a rolling period
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The penalty threshold is 10% sustained LSR above this level triggers seller score penalties, listing suppression, and potential account suspension
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Shopee's algorithm factors LSR into how your listings rank in search and on recommendation surfaces
Lazada: Non-Fulfilment Rate (NFR)
Lazada tracks the Non-Fulfilment Rate, the percentage of orders that are cancelled due to your inability to fulfill them (stock unavailability, operational failure, failure to ship on time). High NFR results in account penalties and can trigger program de-listing.
TikTok Shop
TikTok Shop similarly imposes processing time requirements. Orders not processed within the required window affect seller performance scores, which in turn affect your shop's visibility in the app's shopping surfaces.
What this means in practice: Platform SLAs set the minimum requirement your operation must meet consistently not occasionally. Your internal processes need to be structured around hitting these thresholds on normal days, not just on your best days.
The Four Components of a Realistic SLA
Setting a fulfillment SLA that holds up under real operational conditions requires understanding each stage individually.
1. Order Processing Time
When do you actually acknowledge and begin acting on a new order? If you are checking orders manually once in the morning, orders placed at 2pm will not be processed until the next day. If your order management system is connected via API and triggers immediate picking instructions, processing can begin within minutes.
Key question: What is the maximum time between an order being placed and someone in your team starting to action it?
2. Pick and Pack Time
How long does it take from the moment picking starts to the moment a parcel is sealed, labeled, and ready for courier handover?
This depends on:
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Your product range, simple single-SKU orders vs multi-item orders with combinations
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How your inventory is organized; can pickers locate items quickly?
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Whether packing is standardized or requires custom assembly
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Team size and shift hours
A small operation handling 20–30 orders a day might average 15–20 minutes per order. A larger operation with organized racking and standardized packing might average 3–5 minutes. The difference directly affects how many orders you can dispatch in a day and what SLA you can sustain.
3. Courier Collection or Drop-off Cutoff
Every courier service has collection schedules and cutoff times. If your courier collects once a day at 3pm, any parcel that is not ready by 3pm will wait until the next collection, adding a full day to your actual delivery window, regardless of what your SLA says.
Key question: What is the latest time you can hand a parcel to your courier and still have it dispatched same-day?
4. Last-Mile Delivery Window
Once with the courier, the delivery window depends on the service tier chosen:
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1-hour or 3-hour express delivery — for urgent orders where the customer is willing to pay a premium
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Same-day delivery — order dispatched and delivered within the same calendar day
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Next-day delivery — standard for most Singapore ecommerce sellers
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2–3 day delivery — for lower-cost tiers or bulkier items
Understanding which delivery tier you default to and which you can offer as an upgrade, shapes what promises you can credibly make on your product pages.
The Mistakes Sellers Make When Setting Delivery Promises
Promising delivery time when you mean shipping time
"Ships in 1–2 days" and "Delivered in 1–2 days" are disparate commitments. Stating the former as the latter is the single most common cause of customer complaints about delivery.
Using best-case as the standard
If you can pick, pack, and dispatch within 4 hours on a quiet Tuesday morning, that is your best case, not your operational standard. Your SLA should be built around your consistent, repeatable capacity, not your peak performance.
Ignoring peak periods
Shopee 9.9, 11.11, 12.12, Chinese New Year, and school holiday periods all significantly increase order volume. If your SLA is calibrated for normal volume and you have not accounted for peak surge, you will miss it exactly when it matters most.
Setting the same SLA across all products
A small accessories item and a heavy, multi-component homeware set have very different pick and pack requirements. Applying a single SLA across your entire catalogue will result in either over promising on complex items or under promising on simple ones.
Not updating your SLA when your operation changes
If you move to a new warehouse, change courier partners, reduce team hours, or shift to a new fulfillment model, your SLA should be reviewed and updated. Stale SLAs on your listings that no longer reflect reality cause sustained customer disappointment.
What Your Customer-Facing Delivery Promise Should Actually Say
Customers read delivery promises at the moment of purchase decision. Clarity reduces post-purchase anxiety, pre-empts support tickets, and sets the right expectation if anything goes wrong.
Be specific about what you are promising:
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"Order processed within 24 hours, delivered within 1–2 business days" is more honest and more useful than "Fast delivery"
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State your courier cutoff time if you can, "Orders placed before 12pm dispatched same-day"
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Distinguish between standard and express options with separate, accurate timeframes for each
Tell customers where they can expect delivery, not just when:
For Singapore, island-wide delivery is standard; if there are any exceptions (remote Jurong Island addresses, restricted areas), state them.
Set up proactive communication for delays:
A brief "your order is on its way" notification with a tracking link does more for customer satisfaction than any SLA promise. If there is a delay, for whatever reason, communicate it before the customer has to ask.
Your Fulfillment Setup Determines What You Can Honestly Promise
A seller managing their own stock from a home office or rented space has operational constraints that are different from a seller using a professional 3PL fulfillment partner.
In-house fulfillment: SLA is determined by your own team's hours, picking speed, and daily capacity. It is also the first thing that breaks when volume spikes, when you are understaffed, or when your packing materials run out.
3PL fulfillment: A professional logistics partner operates defined shift hours, structured picking processes, and consistent courier handover schedules. The SLA becomes a system outcome rather than a manual effort, one that scales with your order volume rather than being constrained by it.
For sellers in Singapore who want to commit to competitive same-day dispatch and next-day delivery across the island, working with a fulfillment partner that integrates picking, packing, and last-mile delivery in one operation removes the coordination overhead that typically causes SLA failures.
uParcel's Ecommerce Fulfillment service handles same-day picking and dispatch from its Singapore warehouse, with full island-wide delivery coverage, giving sellers a fulfillment foundation that supports consistent SLA commitments at scale.
For sellers who need to offer express 1-hour or 3-hour delivery as a premium option, integrating that into your SLA menu adds a competitive tier without requiring separate logistics coordination.
The Promise You Make Is the Standard You Are Held To
Every delivery promise on your store is a target your operation has to hit consistently, across peak and off-peak, across simple orders and complex ones.
Setting an SLA that looks impressive but cannot be sustained damages trust and platform standing at exactly the moments when it matters most. Setting one that accurately reflects your operational capacity and then meeting it reliably builds the kind of delivery reputation that keeps customers returning and protects your seller score across every platform you sell on.
If your current fulfillment setup is limiting the SLA you can credibly offer, get in touch with uParcel's team to understand how professional fulfillment changes what you can promise and keep.
Other Blog Posts
Singapore's Ecommerce Boom: Is Your Fulfillment Ready for It?
Singapore just posted the fastest shopping-app install growth in the world. According to Adjust's August 2026 data, Singapore's shopping app installs grew 67% year-on-year against a global average of just 2% for ecommerce apps overall. That is not a cyclical blip or a seasonal spike. It is structural demand growth, compressing into a market that was already one of Southeast Asia's most digitally active. More app installs. More active sessions. More buyers checking out. More orders land in seller warehouses with less notice and less margin for operational error. For Singapore's ecommerce sellers, this is genuinely good news. But good news creates a specific problem: the brands that convert this surge into revenue are not necessarily the ones with the strongest marketing, the sharpest listings, or the largest ad budgets. They are the ones whose fulfillment operations can actually keep up. What 67% Install Growth Means Operationally When shopping app installs grow at 67% year-on-year, the effect is not evenly distributed. Not every seller experiences a 67% order spike overnight. What actually happens is more nuanced and in some ways more demanding. New buyers enter the market. First-time app users are exploring, comparing, and making their first purchases. Conversion is lower, but the pool of potential buyers expands significantly. Existing buyers shop more frequently. Session data typically correlates with purchase frequency. More app opens means more purchase decisions and more repeat orders from your existing customer base. Platform algorithms respond to activity. Shopee, Lazada, and TikTok Shop weight their search and recommendation algorithms toward sellers with strong fulfillment metrics. More buyers in the market means more competition for platform visibility and sellers who maintain their Late Shipment Rate (LSR) and order accuracy hold their position while others lose ground. Order volume becomes less predictable. A 67% shift in the install base does not smooth itself into a predictable daily order increase. It creates spikes, weekend surges, flash sale effects, viral product moments that arrive without warning and test whether your fulfillment infrastructure can flex. The Five Signs Your Fulfillment Can't Keep Up With Demand Growth Most sellers do not realize their fulfillment setup has hit its ceiling until they are already past it usually during a demand spike when the cost of failure is highest. 1. Your Shopee LSR is creeping up during busy periods The Late Shipment Rate is a direct readout of whether your dispatch operations can keep pace with incoming orders. If your LSR holds steady at low volumes but rises when orders surge, your capacity ceiling is visible in your platform data. 2. You are making packing errors at higher volumes Wrong items shipped. Missing components. Incorrect quantities. These errors increase when manual fulfillment operations are stretched to more orders, the same number of hands, and more pressure per unit time. Error rates are a capacity signal. 3. You are spending more time on dispatch, less on the business Growth should free up resources as your operation becomes more efficient. If order growth is consuming proportionally more of your team's time on mechanical packing and dispatch tasks, your fulfillment model is not scaling; it is straining. 4. Your packaging materials and stock replenishment are consistently behind A fulfillment operation that keeps running out of poly mailers, carton boxes, or packing tape is an operation where supply management has not scaled with order volume. The bottleneck shows up as delays before the parcel even reaches the courier. 5. You cannot take on new channels because dispatch would break If the reason you have not listed on TikTok Shop or opened a Shopify store is that your current fulfillment cannot handle additional order streams, growth is being capped by operational capacity not by demand. Why Most Self-Managed Fulfillment Has a Hard Ceiling Self-managed fulfillment from a home, a rented unit, or a small in-house team is an efficient starting point. It gives founders direct visibility over every order and keeps costs minimal at low volume. It also has a structural ceiling that most sellers hit somewhere between 100 and 300 orders per month. The ceiling is not primarily about space. It is about time. Picking and packing 200 orders per month manually consumes approximately 15–20 hours of productive time per week. At 500 orders per month, that time commitment cannot be staffed with one person. And during a demand surge, the exact moment when operational reliability matters most for platform SLA maintenance and customer satisfaction, the self-managed model is the least resilient. A 67% market-wide growth trend is not going to peak and retreat. Singapore's digital consumer base is expanding structurally. The question for sellers is not whether demand will grow, it is whether their fulfillment is built to absorb that growth or to resist it. What a Scalable Fulfillment Setup Actually Looks Like A fulfillment operation that scales with demand growth has three characteristics that self-managed operations typically cannot replicate: Defined throughput capacity with a flex buffer A professional fulfillment partner operates with defined daily pick-and-pack capacity and a staffing model that can absorb volume spikes without affecting dispatch quality or SLA compliance. When your orders double during a Shopee 9.9 campaign, the additional volume processes through the same system at the same accuracy standard. Platform integration that removes manual SLA risk Tracking numbers are generated and pushed back to Shopee, Lazada, and TikTok Shop automatically at the point of dispatch regardless of time of day, order volume, or whether you are at a computer. LSR protection is structural, not dependent on manual attention. Inventory visibility that supports demand planning Real-time inventory tracking across all sales channels means you see stock levels decreasing in real time and can plan replenishment before stock-outs occur, not after orders start failing. During a growth surge, stock-out prevention is as important as dispatch speed. uParcel's Ecommerce Fulfillment service is built around this model, same-day dispatch from the Defu warehouse, platform integration included as standard, and a returns management process that maintains fulfillment quality as your order volume scales. The Competitive Advantage Is Operational, Not Just Marketing Singapore's 67% shopping-app install growth creates a larger addressable market. But it also creates more competition for buyer attention within that market and more competition on the platform metrics (fulfillment rate, LSR, seller score) that determine which sellers those buyers see. The sellers who convert this growth into sustained revenue will not simply be the ones who attract the most clicks. They will be the ones who fulfill every order accurately, on time, every day, including the days when demand spikes unexpectedly. That is an operations problem as much as a marketing one. And it is worth solving before the next surge, not during it. If your current fulfillment setup is approaching its ceiling, speak to uParcel's team about what a scalable fulfillment model looks like for your product range and current order volume. Source: Singapore leads global shopping-app install growth at 67% year-on-year (Adjust, August 2026), as reported by TechNode Global, 27 August 2026.
Storage Cost Isn't Fulfillment Cost: What a Self-Storage Unit Doesn't Do for Your Ecommerce Business
The first time most Singapore ecommerce sellers compare a self-storage unit to a fulfillment warehouse, they look at one thing: the monthly fee. Self-storage in Singapore costs S$200–600 per month for a small unit. A professional 3PL fulfillment service costs more. On paper, that looks like a straightforward case for self-storage. The problem with that comparison is that it is not comparing the same thing. A self-storage unit stores your inventory. A fulfillment warehouse stores your inventory, picks and packs every order, integrates with your sales channels, dispatches with a courier, processes your returns, and updates your stock count, automatically, every day. When you rent a self-storage unit for your ecommerce business, you are buying the cheapest possible part of the fulfillment equation. You are still doing everything else yourself. What Self-Storage Actually Is and Is Not Self-storage in Singapore is designed for one purpose: holding things in a secure, lockable space that is not your home. It serves individuals between house moves, businesses with seasonal equipment, and contractors with tools to stash between jobs. It is not an operational logistics facility. A self-storage unit gives you: A lockable room of a set size Access during facility opening hours Security and basic climate control (in some facilities) It does not give you: Shelving or racking optimized for ecommerce picking An Inventory Management System (IMS) Platform integration with Shopee, Lazada, TikTok Shop, or Shopify Staff to pick, pack, and label your orders A courier collection point Return receiving and processing Inventory accuracy tracking When you use self-storage as your fulfillment base, you are the IMS. You are the picker. You are the packing team. You are the courier liaison. You are handling returns. The storage fee is the smallest line item in your actual fulfillment cost. The Seven Things a Self-Storage Unit Cannot Do for Your Ecommerce Business 1. Pick and pack your orders Every order that comes through Shopee or Lazada needs someone to locate the item, pick it from your shelves, pack it, weigh it, label it, and prepare it for courier collection. In a self-storage unit, that someone is you, every time. 2. Integrate with your sales channels A fulfillment warehouse connected to your Shopee, Lazada, TikTok Shop, or Shopify account receives your orders automatically and pushes dispatch and tracking updates back to the platform. A self-storage unit has no system, you are manually checking orders across platforms and manually marking items shipped. 3. Meet Shopee's ships-by deadline without you physically present Shopee requires sellers to arrange shipment within the ships-by window. If you are not physically at your storage unit that day because you have a day job, you are travelling, you are unwell, your Late Shipment Rate (LSR) climbs. Above 10%, your listings get suppressed. 4. Dispatch when you cannot be there A self-storage unit operates only when you are operating it. A fulfillment warehouse operates on a schedule with a noon cut-off for same-day dispatch regardless of what you are doing. 5. Process your returns When a customer returns an item through Shopee Guarantee or Lazada's buyer protection, that item needs to be received, inspected, and either restocked or flagged as unsaleable. In a self-storage setup, it arrives at your home or a P.O.-box equivalent. You assess it. You update your inventory. You decide what to do. A fulfillment warehouse handles all of this as a defined service. 6. Track inventory in real time Most self-storage operators offer no inventory tracking. You are responsible for knowing what you have, where it is, and when you are running low. A fulfillment warehouse with an IMS gives you a live view of every SKU, every unit, and every movement in and out. 7. Scale with your order volume At 20 orders a month, self-fulfillment from a storage unit is manageable. At 100 orders a month, it starts to dominate your week. At 300 orders a month, it is a full-time job that is not your actual job. The Hidden Cost of Doing Fulfillment Yourself When sellers compare self-storage fees against fulfillment service fees, they count the storage cost. They rarely count the cost of their own time. Consider what self-fulfillment from a storage unit actually requires per week at 80 orders per month: Travel to and from the storage unit: 3–4 trips per week minimum Order processing: checking platforms, downloading pick lists, matching orders to stock Picking and packing: locating items, assembling orders, packing, sealing Labeling and sorting: printing labels or handwriting addresses, organizing for courier Courier coordination: dropping off or waiting for collection Returns handling: receiving, inspecting, restocking Inventory reconciliation: checking stock levels, reordering, updating listings At 80 orders per month, this realistically consumes 12–18 hours per week. At S$25–40 per hour of your time, that is S$1,200–2,880 per month in opportunity cost alone, before you count the storage fee, packaging materials, or transport. The question is not whether the 3PL costs more than the storage unit. The question is whether the 3PL costs more than the storage unit plus everything you are currently doing yourself. What Happens When Orders Scale Self-fulfillment from a storage unit has a ceiling, and it arrives faster than most sellers expect. At 20–30 orders per month: manageable. A few hours per week, one or two storage unit trips. At 80–100 orders per month: starting to dominate evenings and weekends. Courier collection timing starts affecting your SLA. Inventory discrepancies begin appearing. At 200+ orders per month: physically unsustainable without hiring help. At this point, you are either building an ad hoc warehouse team of your own or falling behind on dispatch which affects your Shopee LSR, Lazada NFR, and customer satisfaction scores simultaneously. The critical point is that the scaling problem arrives during the periods when it is hardest to stop and reorganize, typically during peak sales (Mega Sales, year-end, Chinese New Year). Sellers who have not migrated to a fulfillment partner before peak hit it hardest precisely when they can least afford the operational disruption. Migrating to a fulfillment partner mid-peak is operationally disruptive. Migrating before your volume demands it is straightforward. When Self-Storage Actually Makes Sense To be clear: self-storage is not the wrong choice for every ecommerce business. There are scenarios where it is genuinely the right answer. Self-storage makes sense when: You are in a testing phase, validating product-market fit before committing to operational infrastructure Your order volume is below 20–30 per month and likely to stay there You have significant time flexibility and no opportunity cost to your own hours Your products are oversized or have restrictions that make standard fulfillment impractical You need a pure stock buffer for B2B bulk orders, not B2C individual fulfillment Self-storage stops making sense when: You are missing Shopee or Lazada ships-by deadlines due to operational constraints Fulfillment is consuming more than 10–12 hours of your week You cannot reliably dispatch when you are unavailable You are handling returns case-by-case with no system You are planning any marketing investment to grow order volume What an Ecommerce Fulfillment Warehouse Does Instead A professional ecommerce fulfillment partner handles the entire outbound operation, not just the storage component. When an order comes in through your Shopee or Lazada store, the fulfillment warehouse: Receives the order automatically via platform integration Picks the correct items from shelved, organized stock Packs and labels the order to courier specification Dispatches by the cut-off time, same-day if received before noon Updates tracking status back to the platform Handles returns when they arrive, inspects, and restocks You receive reporting. You monitor performance. You focus on the parts of the business that grow it — product selection, marketing, customer relationships rather than the parts that run it. uParcel's Ecommerce Fulfillment service operates from its Defu warehouse in Singapore, with platform integration for Shopee, Lazada, TikTok Shop, Shopify, and WooCommerce included at no extra charge. For sellers who want to understand exactly what the service costs across all fee categories before making a decision, the ecommerce fulfillment pricing guide covers the full breakdown. The Comparison Worth Making When you compare a self-storage unit to a fulfillment warehouse, compare the right things: Self-storage: monthly fee + packaging materials + transport costs + your time (at its real opportunity cost) + the cost of LSR penalties and customer churn from missed dispatches. Fulfillment warehouse: monthly service fee covering storage, pick and pack, dispatch, returns, inventory tracking, and platform integration. For most Singapore ecommerce sellers processing more than 50 orders per month, the total cost of self-fulfillment, including time, is higher than the total cost of a fulfillment partner. The fulfillment partner also removes the constraint that caps how quickly your business can grow. Storage cost is not fulfillment cost. Once you account for everything else you are doing yourself, the economics of outsourced fulfillment look very different. Talk to uParcel's team about whether the numbers work for your current order volume and product range.
Ecommerce Fulfillment Pricing in Singapore: What You're Really Paying For
Most sellers comparing 3PL fulfillment partners in Singapore look at one number: the pick and pack rate. That's understandable; it's the most visible charge. But it's rarely the largest one on the invoice, and it's only one component of what fulfillment actually costs you per order. Singapore's 3PL fulfillment pricing is structured across multiple fee categories. Each reflects a real operational step in getting your product from shelf to customer. Knowing what each category covers, what triggers the charge, and how your volume affects the unit rate gives you a complete picture of fulfillment economics before you sign a contract and before surprises appear on your first invoice. How Singapore 3PL Fulfillment Pricing Is Structured Most fulfillment providers in Singapore price services on a volume-tiered model, with your inventory footprint measured in cubic metres (CBM) determining which tier applies. A typical three-tier structure looks like this: Tier Storage Footprint Typical Profile Start-Up 1–3 CBM New seller, testing the market, low order volume Small Business 4–10 CBM Growing seller with regular order flow Scaling Enterprise 11+ CBM Established seller with consistent high volume As your inventory footprint grows, per-unit rates across pick and pack, SKU management, and minimum billing all decrease. The pricing structure is designed to reward operational scale, which means consolidating your inventory with a single fulfillment partner becomes more cost-effective as your business grows. Key implication: if you are comparing multiple 3PL providers, make sure you are comparing rates at the same tier. A start-up rate from one provider compared against an enterprise rate from another is not a meaningful comparison. Pick and Pack: The Core Fulfillment Charge Pick and pack is the fundamental outbound operation: locating your product on the shelves, preparing it for dispatch, and labeling it for the courier. It is charged per order, not per item, and typically covers a baseline number of items: Base rate covers the first 1–3 items per order, each within a set weight limit (typically ≤5kg per item) Additional item charge applies for each item beyond the base count typically S$0.50 per additional item Heavy item surcharges apply when individual items exceed the weight threshold: for example, an additional S$4.00 per item for items between 5–10kg, and S$8.00 per item between 10–20kg Illustrative pick and pack rates by tier: Tier Rate per Order (up to 3 items ≤5kg) Start-Up (1–3 CBM) ~S$1.90 Small Business (4–10 CBM) ~S$1.70 Scaling Enterprise (11+ CBM) ~S$1.40 What to ask any provider: How many items are included in the base order rate? What is the per-item weight threshold? What surcharges apply for heavier items or orders with many SKUs? Inbound Handling: Getting Your Stock into the System Every shipment you send to a fulfillment warehouse incurs an inbound handling fee. This covers the labour of receiving, counting, shelving, and recording your inventory into the system. There are typically two charging methods: By pallet/carton: A flat fee per pallet (e.g. ~S$30 for up to 15 cartons of the same SKU), with an additional charge per carton beyond that threshold. This method works when each carton contains one SKU only. By piece count: A per-unit rate (e.g. ~S$0.25 per item) applied when cartons contain mixed SKUs and items must be individually counted and sorted. This is slower and more labour-intensive, hence the different rate. Inbound handling is the fee seller most commonly overlooks when building their fulfillment cost model. If you are sending stock replenishment every two weeks, that cost adds up quickly. Practical question: How often will you replenish? What is the mix of SKUs per carton? This determines whether pallet-rate or piece-rate inbound processing applies to your operation and whether you can optimize your inbound process to reduce costs. SKU Management Fees: Your Product Catalog in the System An SKU management fee is charged per active SKU per month. It reflects the overhead of maintaining each unique product identifier in the Inventory Management System (IMS) including size and colour variants, which each count as a separate SKU. Illustrative SKU fees by tier: Tier SKU Fee per Month Start-Up ~S$4.00 per SKU Small Business ~S$2.00 per SKU Scaling Enterprise ~S$1.00 per SKU For a seller with 30 active SKUs at the small-business tier, the monthly SKU fee alone is S$60. For a seller at the start-up tier with 30 SKUs, it is S$120. Who should pay attention to this: sellers with wide product catalogs relative to their order volume. If you carry 80 SKUs but average only 100 orders per month, the SKU fee represents a meaningful portion of your total monthly fulfillment cost. Rationalizing slow-moving SKUs or bundling variants can reduce this fee. What is typically included at no extra charge: IMS system access and integration with major ecommerce platforms, Shopee, Lazada, TikTok Shop, Shopify, WooCommerce are usually provided free of charge as part of the fulfillment service. Minimum Monthly Billing: Understanding the Floor Every 3PL sets a minimum monthly spend to make the relationship operationally viable. If your total chargeable services for the month fall below this minimum, you are invoiced the difference. Typical minimum structure in Singapore: Start-up tier: a fixed minimum, for example, S$200/month Small business and enterprise tiers: a per-CBM rate × your storage footprint (e.g. S$89 per CBM — so a seller on 10 CBM has a S$890 minimum) What the minimum covers: pick and pack, local delivery charges, returns processing, kitting, labeling, and marketing inserts, the core fulfillment services. Storage and inbound handling are typically billed separately on top. How to use this when evaluating a provider: Estimate your expected monthly fulfillment activity: Orders × pick/pack rate Delivery charges Returns × returns management rate If that estimated total is consistently below the minimum, the minimum is your real baseline cost; plan around it. Value-Added Fulfillment Services: Common Add-Ons Beyond pick and pack, inbound, and SKU fees, most fulfillment providers offer additional services that are billed separately when used: 01. Returns management Processing a returned order, receiving the item, inspecting it, updating inventory, and restocking if saleable is typically charged at a flat rate per return (e.g. ~S$3.00 for the first three items, S$0.50 per additional item). Repackaging, photo-taking, quality checking, refurbishment, or disposal are typically charged at an hourly manpower rate. 02. Kitting Assembling multiple SKUs into a bundled product or gift set for outbound dispatch. Typically charged per assembled order (e.g. ~S$3.00 for up to three SKUs, S$0.50 per additional SKU). Sellers offering promotional bundles or subscription boxes should factor kitting into their unit economics. 03. Marketing inserts Placing a promotional card, sample, or branded material inside each outbound order, typically priced at a few cents per insert (e.g. ~S$0.20 per piece). For sellers running retention campaigns with outbound packaging, this is a significant line item at volume. 04. Labelling If your items arrive at the warehouse without proper barcodes or compliance labels, the fulfillment partner charges a labelling fee to apply them. This is avoidable by labelling correctly at origin. 05. Ad hoc manpower Stock takes, special handling, or custom assembly beyond standard service scope, typically billed at an hourly rate (e.g. ~S$40 per man-hour). Delivery Fees: Volume Discount Structure Delivery charges are quoted and billed separately from fulfillment fees. They are based on parcel dimensions and weight, with the service tier (same-day, 3-hour, next-day, 3-day) determining the base rate. Volume discounts typically apply: 10% off — no minimum volume required 20% off — at 200 or more deliveries per month One detail that trips up multi-channel sellers: deliveries dispatched via platform-assigned carriers Shopee Preferred Logistics (SPX), J&T, Singpost, typically do not count toward your monthly volume threshold with your 3PL. If you are routing all Shopee orders through SPX and only sending your own-website orders through your 3PL's delivery network, your 3PL order count may be lower than your total order volume suggests, affecting the discount tier you qualify for. Charges That Catch Sellers Off Guard Before signing a fulfillment agreement, ask specifically about: Location surcharges on delivery: CBD zones, Sentosa, and industrial areas like Tuas typically carry delivery surcharges on top of base rates. If a portion of your customer base is in these areas, factor the surcharge into your average delivery cost. Security deposit: Most Singapore 3PL providers require a refundable security deposit, typically equivalent to two months of storage fees plus minimum spending, with a floor (e.g. S$1,400). This is a one-time upfront cash requirement before services begin. Minimum contract term: A 6-month minimum commitment is standard in Singapore. Early termination before the minimum term typically results in the deposit being forfeited. Custom integration costs: Standard platform integrations (Shopee, Lazada, TikTok Shop, Shopify) are generally included free of charge. Custom integrations with non-standard platforms or ERP systems are typically billed at an hourly development rate. Disposal and expiry management: For sellers stocking FMCG, health, or food products, expiry management and disposal fees apply separately. Disposal of expired goods is typically charged per kilogram or per cubic metre not a trivial cost for high-volume food or supplement sellers. Putting the Full Cost Together A seller with 200 orders per month, 25 active SKUs, and standard next-day delivery across Singapore might see a total monthly fulfillment cost in the range of S$2,300–2,600 approximately S$11–13 per order. That per-order cost includes pick and pack, SKU management, delivery, and a return rate of approximately 5%. It does not include storage, which sits separately and depends on your inventory footprint. The per-order cost drops as volume grows. At 500 orders per month, the same seller, now qualifying for the 20% delivery discount and a lower tier rate on pick and pack, might see the total cost per order fall to S$9–11. Understanding how each fee component behaves at different volume levels is how you build a fulfillment cost model that actually helps you make decisions, about pricing, about which channels to grow, and about when outsourced fulfillment becomes clearly more cost-effective than in-house handling. If you would like to understand what fulfillment would cost specifically for your product range, order volume, and channel mix, uParcel's Ecommerce Fulfillment team can walk through a quote with you. For indicative delivery rates, uParcel's rates page covers the full delivery pricing structure.