Amazon FBA and Deposco
Integration Agency & Consultants
Inbound stock frequently disappears during the hand-off between Deposco and Amazon FBA centres, leaving finance teams to chase reconciliation gaps in settlement reports. At scale, the mismatch between Deposco warehouse bin accuracy and Amazon opaque 'received' quantities creates phantom stockouts and unreconciled damaged units. Our approach focuses on resolving these inventory variances by aligning Deposco work orders with Amazon's inbound shipment reality. This provides a clear audit trail that prevents duplicate tax liabilities and identifies exactly where stock stalls in the pipeline.
Auditing inventory gaps across fulfilment nodes
We connect your Amazon FBA and Deposco integrations quickly, supporting Marketplaces and WMS/3PL requirements. Our consulting services are valuable because our system audit identifies inefficiencies and integration gaps across Amazon FBA, Deposco, Marketplaces, and WMS/3PL. This enables our consultants and your team to take decisive action, ensuring your technology ecosystem operates efficiently. With our expertise, you can deliver a reliable experience to your customers, confident that your integrations and workflows are optimised for smooth, effective operations.
Solution Design
Our design for Amazon FBA and Deposco prioritises inventory truth at the warehouse level. Deposco typically acts as the master of physical stock, managing the pick-and-pack for FBA Inbound Shipments, while Amazon owns final-mile fulfilment. A critical design decision involves the Unit of Measure (UOM) mapping; we ensure warehouse 'eaches' translate correctly to Amazon cartons to prevent receiving errors. We manage the trade-off between real-time inventory updates that protect against overselling and batch cycles that provide better system stability for high-volume environments. Amazon settlement data typically flows back to allow finance to reconcile against Deposco shipment records, ensuring the business stays anchored to physical reality even when marketplace reporting is delayed.
Synchronising inbound shipments and stock counts
The integration manages the lifecycle of an FBA Inbound Shipment from the moment it is staged in Deposco. Deposco is the source of truth for the physical count leaving the building. We map the data flow to ensure that shipment confirmations from Deposco trigger the correct notifications in Amazon. Data integrity hinges on the Unit of Measure; a mismatch here can cause Amazon to miscount inventory, stalling your sales. The integration monitors these handoffs, surfacing issues when Amazon's 'received' quantity doesn't match the Deposco 'shipped' quantity. This prevents blind spots in your stock levels and ensures your records reflect actual inventory movement.
Securing data flows via accredited platforms
Leveraging IPaaS with ISO 27001 and SOC 2 and above security accreditations enables secure, efficient integration between Amazon FBA, Deposco, Marketplaces, and WMS/3PL systems. This approach simplifies connecting Amazon FBA and Deposco to Marketplaces and WMS/3PL, ensuring data integrity and compliance. IPaaS platforms offer centralised management, automation, and robust security, making integrations more reliable and scalable for businesses handling complex supply chain and fulfilment operations.
Detecting physical versus digital inventory drift
Standard dashboards often hide the mismatch between Deposco’s pick records and Amazon’s received totals. True visibility requires surfacing the specific exceptions where inventory is lost in transit or miscounted at the fulfilment centre. We focus on detecting these failures early, highlighting discrepancies before they impact your Amazon seller account. Without this, hidden issues compound into inaccurate stockouts and reporting errors. We move beyond simple sync monitoring to show you where your physical and digital counts have diverged, allowing your team to intervene before the month-end close.
Handover for finance and operations teams
Training focuses on how your finance and operations teams own the daily reality of the Amazon FBA and Deposco link. We hand over a clear operating model that defines who checks the inbound shipment reconciliation and who manages exception alerts when Amazon reports a short-receipt. Your team learns to identify whether a discrepancy sits in Deposco pick-and-pack or Amazon’s receive logic. We provide operational documentation written for the people running the business, not technical archives for IT. This ensures your staff know exactly what to check weekly and how to resolve stock mismatches before they compound into financial errors at month-end.
Governance and reconciliation after go-live
Post-launch, our support model focuses on ongoing operational health. We monitor for sync errors and stock mismatches that standard support desks often miss. If an inbound shipment fails to post or a report shows unexpected deductions, we provide the diagnosis to identify the root cause. This includes managing the technical health of the connection while your team manages stock level decisions. Our goal is to ensure the integration continues to reflect your warehouse reality as your Amazon volumes grow.
Common failures
Mismatched Unit of Measure on FBA inbounds
Operational impact: Deposco sends individual units (eaches) for an FBA Inbound Shipment, but the corresponding plan in Amazon Seller Central expects cartons. This causes receive errors at the FBA fulfilment centre, delaying stock availability for weeks. Operations teams must manually intervene to resolve the exceptions, and the SKUs are unsellable until Amazon reconciles the physical items against the shipment.
Prevention / Action: The integration logic must explicitly map the Unit of Measure (UOM) from Deposco to the packaging hierarchy expected by the Amazon FBA Inbound Shipment plan. Source-of-truth for item packaging, such as eaches per carton, must be maintained in Deposco and sent in the shipment data payload to Amazon. Build monitoring to flag any shipment advice that fails Amazon's initial validation before the goods are physically dispatched.
Failure to reconcile FBA disposal and return quantities
Operational impact: When Amazon FBA disposes of unsellable stock or processes a customer return, the inventory change is not always written off correctly in Deposco. This leads to a divergence where Deposco's record shows phantom stock that does not exist. The finance team cannot accurately value inventory, and future inbound shipment plans are based on incorrect stock-on-hand data.
Prevention / Action: Use Amazon's Removal Order Detail and FBA Inventory Adjustment reports as the triggers for creating corresponding inventory adjustments in Deposco. This process should run on a scheduled basis, creating an auditable transaction, such as a stock write-off, that mirrors the action taken at FBA. This ensures both systems reflect the same final inventory position and that financial records are accurate.
Financial reconciliation gaps from Settlement Reports
Operational impact: Amazon's Settlement Reports contain all sales revenue, FBA fees, shipping charges, and other costs, but often fail to map cleanly to financial records. The finance team resorts to manual, spreadsheet-based reconciliation to match Amazon payouts to the original sales orders and account for all fees. This process is error-prone, delays the month-end close, and obscures per-order profitability.
Prevention / Action: Design the integration to automatically parse the Amazon Settlement Report and create corresponding journal entries against the original sales orders in the primary financial system. This process requires a robust mapping between Amazon's order identifiers and internal sales order numbers. It must also correctly categorise each fee type (e.g., FBA Pick & Pack Fee, Weight Handling Fee, monthly storage) for accurate general ledger posting.
Inaccurate inbound inventory forecasting
Operational impact: The business decides its FBA inbound shipment volumes based on Deposco's view of available stock, without factoring in transfer lead times or Amazon's own receiving delays. This results in sending too much stock too early, incurring unnecessary storage fees, or sending it too late and causing stockouts. Operations and finance teams are constantly reacting to either excess holding costs or lost sales revenue.
Prevention / Action: Deposco should remain the source of truth for physical stock, but the process for planning FBA inbound shipments must incorporate Amazon's data. Use Amazon's own sales velocity and inventory level data to calculate a target stock level for each SKU at FBA. The integration can then suggest a transfer quantity from Deposco by subtracting the current FBA stock and any open in-transit shipments from this target.
Frequently asked questions
How do we identify discrepancies between stock sent from Deposco and what Amazon FBA actually receives?
This requires a routine that compares the FBA Inbound Shipment record from Deposco with Amazon's own receiving reports and settlement data. Without an integration to automate this comparison, finance and operations teams cannot systematically challenge Amazon for deductions on missing or damaged units. The process provides the specific FBA Shipment ID and SKU-level data needed to raise a case with Amazon.
What is the most common cause of FBA inbound shipment errors when using Deposco?
A frequent failure point is a mismatch in the Unit of Measure (UOM) between the two systems. For instance, Deposco will process an FBA Inbound Shipment containing 100 'eaches', but the corresponding SKU in Amazon Seller Central is incorrectly configured to expect 10 'cartons'. This mismatch causes the entire inbound shipment to be rejected or stalled at the FBA receiving centre, creating phantom stock and requiring manual intervention.
Which system should be the source of truth for inventory availability?
Deposco must act as the inventory master for all physical stock, including the stock allocated and picked for an FBA Inbound Shipment. However, once stock is received by Amazon, FBA becomes the source of truth for its own 'available for sale' quantity on the marketplace. A strong integration focuses on reconciling the differences between Deposco's dispatched records and Amazon's opaque received quantities.
How can we reconcile Amazon's fees and deductions against our Deposco shipment records?
The only reliable method is to systematically ingest the Amazon Settlement Reports, which contain line-item data for FBA fees, storage charges, and other deductions. An integration maps these financial records back to the original FBA Inbound Shipment data from Deposco. This allows the finance team to automate reconciliation and flag discrepancies, rather than manually cross-referencing SKUs and quantities in spreadsheets.