Amazon Vendor Central and SAP B1
Integration Agency & Consultants
Operational pressure typically builds when Amazon Vendor Central sales and chargebacks do not easily reconcile against SAP B1 financials. At higher volumes, manual updates often fail to keep pace with Amazon fulfilment rates, which can lead to inaccurate stock levels and overselling. This integration ensures that SAP B1 remains the system of record for inventory and revenue, providing the financial control needed to manage Amazon order and shipment data without manual intervention.
Auditing your current Amazon and SAP architecture
We connect Amazon Vendor Central and SAP B1 with your ERP and Marketplaces, ensuring your systems work together efficiently. Our consulting services are invaluable, with our system audit uncovering integration gaps between Amazon Vendor Central, SAP B1, ERP, and Marketplaces. This empowers both our consultants and your team to take decisive action, keeping your tech ecosystem running smoothly. With our expertise, you can deliver a reliable experience to your customers and ensure your business is ready for future growth.
Solution Design
For Amazon Vendor Central and SAP B1, we typically designate SAP B1 as the definitive source of truth for inventory and financials. A key design decision involves automating the flow of purchase orders and advanced shipping notices to replace manual data entry. We prioritise transactional order and shipment data initially, ensuring baseline accuracy before automating complex financial reconciliations. A standard trade-off involves inventory sync frequency: very frequent updates provide higher accuracy for fast-moving goods but can increase system load. We usually implement a scheduled sync that focuses on Available to Sell quantities to protect fulfilment rates. This model ensures the finance team can rely on SAP B1 for month-end reporting while the operations team maintains visibility over Amazon's strict fulfilment windows.
Mapping TRANSACTIONAL data flows and SKU alignment
Transactions flow from Amazon Vendor Central into SAP B1 as Sales Orders, triggered by the arrival of new Purchase Orders. We apply mapping rules to ensure Amazon’s product codes align with SAP B1 SKUs and Business Partner master records. To maintain operational compliance, the integration ensures Order Acknowledgements and Advance Shipping Notices (ASN) are transmitted back to Amazon within their required delivery windows. Inventory levels are pushed from SAP B1 to Amazon on a defined schedule, typically filtering for available stock to prevent overselling. Monitoring is built into each sync to catch price mismatches or shipping method errors before they obstruct revenue recognition in the ERP.
Securing the integration with accredited middleware platforms
Leveraging IPaaS with ISO 27001 and SOC 2 and above security accreditations enables secure, efficient integration between Amazon Vendor Central, SAP B1, Marketplaces, and ERP systems. This approach simplifies connecting Amazon Vendor Central and SAP B1 with Marketplaces and ERP platforms, ensuring data protection and compliance. IPaaS platforms offer centralised management, automation, and scalability, making integrations more reliable and secure for businesses handling sensitive data.
Eliminating hidden chargebacks through proactive monitoring
Standard dashboards often miss the silent failures that erode margins in a high-volume Amazon Vendor operation. Visibility must go beyond simple success notifications to identify data drift, such as when an order is fulfilled in the warehouse but the Advance Shipping Notice (ASN) fails to reach Amazon. Hidden issues like unmapped SKUs or incorrect carrier codes lead to chargebacks that often stay buried until the settlement arrives. The integration layer surfaces these exceptions early, allowing teams to intervene before compliance penalties mount. We monitor the health of the entire order-to-cash cycle to ensure every Amazon transaction has a corresponding financial record in SAP B1, preventing reconciliation gaps at month-end.
Operational handover for finance and logistics teams
Handover focuses on the teams running the business day to day. Finance, warehouse, and ecommerce leads must understand the data ownership between Amazon Vendor Central and SAP B1. We provide operational guides that explain how to verify order batches, check inventory sync status, and respond to alerts from the integration layer. Training is anchored in practical tasks, such as identifying why an order failed to post or how to reconcile Amazon payments against SAP B1 invoices. We ensure that documentation acts as a working reference for the team, detailing who owns each exception type so the business can maintain accuracy across both systems independently.
Governing compliance after the system goes live
Support focuses on ensuring the integration remains compliant with Amazon's evolving vendor requirements. We monitor for sync failures and data exceptions, such as rejected Advance Shipping Notices or price discrepancies, and provide a defined path for resolution before they impact your vendor score. Our role is to ensure your SAP B1 inventory and financial data remains consistent with Amazon sales without requiring manual intervention from your team.
Common failures
Inventory latency and overselling
Operational impact: When SAP B1 is the stock master, delays in updating Amazon Vendor Central lead to Purchase Orders for items that are no longer available. This forces PO rejections or cancellations, triggering chargebacks for non-fulfilment and damaging the vendor's performance score. The finance team must then process these penalty invoices, while the fulfilment team investigates stock discrepancies instead of processing valid orders.
Prevention / Action: The integration must treat SAP B1 as the definitive source of truth for available-to-promise inventory. Updates to Amazon should run on a frequent, defined schedule that balances accuracy against API rate limits and SAP B1 system load. Implement robust queue and retry logic to ensure inventory update messages are processed successfully, with immediate alerts for the operations team upon failure.
Rejected Advanced Shipping Notices (ASNs)
Operational impact: Amazon imposes strict compliance rules on ASN data. If the ASN file, triggered by a Delivery or Goods Issue in SAP B1, contains data that mismatches the original Purchase Order or physical shipment, Amazon will reject it. This results in immediate chargebacks that erode margins and require manual correction in SAP B1 financials, while repeated failures can put the entire account's shipping privileges at risk.
Prevention / Action: Map all ASN data points meticulously during implementation, ensuring fields like carrier codes and package identifiers (SSCCs) are pulled correctly from SAP B1 master data. The integration logic must only generate and transmit the ASN after all shipment details are confirmed and locked in SAP B1. Introduce a pre-transmission validation step to check the ASN data against Amazon's known requirements to catch errors before they trigger a penalty.
Manual financial reconciliation
Operational impact: Amazon's remittance advice files bundle payments with various deductions such as co-op fees, shortage claims, and compliance chargebacks. The finance team is forced to manually unpick these files to match them against sales invoices and credit memos in SAP B1. This intensive manual work delays the month-end close, prevents accurate revenue recognition, and makes disputing incorrect chargebacks nearly impossible.
Prevention / Action: Design the integration to automatically parse Amazon’s payment and deduction files. The logic should create corresponding Incoming Payment and Journal Entry documents in SAP B1, mapping specific Amazon reason codes to the correct general ledger accounts. This allows the finance team to focus on exception handling, investigating only the discrepancies flagged by the integration, rather than reconciling every line item.
Purchase Order Acknowledgement failures
Operational impact: Amazon requires a timely Purchase Order Acknowledgement (POA) that confirms, rejects, or amends every PO. If the integration fails to send a POA from SAP B1 within the specified window, Amazon may levy a chargeback or cancel the order entirely. This creates significant disruption for demand planning, as the operations team may have already allocated stock in SAP B1 for an order that is no longer valid.
Prevention / Action: The integration must be configured to automatically generate and send the POA message as soon as the Amazon Purchase Order is successfully created and validated in SAP B1. For partial stock situations, the process must be clearly defined: either automatically acknowledge with adjusted quantities based on SAP B1 availability or route the PO to an exception queue for immediate manual review.