Amazon Seller Central and BigCommerce
Integration Agency & Consultants
Inventory parity between Amazon Seller Central and BigCommerce usually becomes a critical pressure point when manual entry lag or batch sync delays cause overselling on Amazon. High-volume merchants face account health risks, such as Late Shipment Rate (LSR) warnings and 'Buy Box' loss, when BigCommerce cannot push tracking data or fetch FBA stock levels in real time. We build integrations that establish a clear catalogue truth, ensuring available-to-sell figures protect your Amazon standing while maintaining stock availability on your web store.
Auditing marketplace gaps and system inefficiencies
We connect your Amazon Seller Central and BigCommerce integrations quickly, supporting your Ecommerce and Marketplaces operations. Our consulting services are invaluable for businesses using Amazon Seller Central, BigCommerce, and other Ecommerce Marketplaces. Through our system audit services, we identify inefficiencies and integration gaps, enabling both our consultants and your team to take decisive action. This ensures your technology ecosystem runs efficiently, so you can deliver a great customer experience across BigCommerce, Amazon Seller Central, and all your Marketplaces and Ecommerce channels.
Solution Design
The integration is designed with BigCommerce acting as the product master and Amazon FBA providing authoritative stock levels for marketplace-fulfilled SKUs. Orders typically sync on a defined schedule to BigCommerce to ensure inventory counts remain accurate across storefronts. We prioritise the flow of tracking and fulfilment status back to Amazon to protect your seller performance metrics. A common trade-off involves batching financial settlement data rather than attempting real-time payout updates. This reduces technical fragility while ensuring finance teams can perform accurate reconciliation based on cleared Amazon funds. This design ensures operations can trust stock levels throughout the day, while finance maintains a clean record of channel fees and true margins.
Synchronising order logic and inventory mappings
BigCommerce typically serves as the master catalogue and price source, while Amazon Seller Central provides the marketplace reach and FBA fulfilment data. To protect account health, orders usually sync to BigCommerce on a defined schedule to consolidate reporting and provide a single view of inventory. For FBA orders, tracking information flows back to BigCommerce once Amazon confirms shipment to prevent status drift. Integrating these systems requires managing the rigid performance metrics of Amazon against the flexible logic of a BigCommerce storefront. Reconciliation handles variance by matching Amazon payouts and fees against BigCommerce order values, ensuring finance teams can report on channel performance. By monitoring for latency where status updates may batch under load, the integration protects the data integrity between marketplace volume and storefront reporting.
Orchestrating secure flows via accredited middleware
Leveraging IPaaS with ISO 27001 and SOC 2 and above security accreditations ensures secure, efficient integration between Amazon Seller Central, BigCommerce, and other Ecommerce platforms. This approach simplifies connecting Marketplaces, automates data flows, and supports compliance. IPaaS enables reliable synchronisation between Amazon Seller Central, BigCommerce, and other Ecommerce Marketplaces, reducing manual effort and risk. The result is secure, scalable integration for businesses operating across multiple Marketplaces and Ecommerce channels.
Monitoring data flows to protect account health
Visibility is about detecting an inventory update failure before it becomes an Amazon Seller Central policy violation. Monitoring identifies when FBA stock levels fail to sync with the BigCommerce catalogue or when a shipment confirmation is delayed. This allows the team to correct a stock level or tracking number before it triggers a Late Shipment Rate warning or affects Buy Box standing. Dashboards alone are often insufficient because they can mask the compounding lag that leads to account health risks. The focus must be on surfacing the specific data flows that impact your marketplace metrics, ensuring operational latency is identified before it impacts your seller performance.
Operational handover for finance and ecommerce teams
Finance, ecommerce and ops teams must bridge the gap between BigCommerce storefront logic and Amazon Seller Central metrics. Handover focuses on the operating model: ecommerce owns stock parity to protect the Buy Box, while finance owns the reconciliation of Amazon settlements against BigCommerce order records. We walk teams through the checks required to spot operational drift, such as FBA inventory sync failures or Amazon account health alerts. We provide documentation written for operators, not IT. It details how to read integration alerts and who owns each exception type, from shipment delays to settlement discrepancies. These operational references ensure the team can resolve the sync issues that typically impact account health.
Technical governance for marketplace performance metrics
Operational support ensures the connection between Amazon Seller Central and BigCommerce remains stable after launch. Monitoring tracks synchronisation errors that could impact your seller performance metrics or account health. Support provides technical assistance when Fulfilled by Merchant (FBM) or FBA stock levels and fulfilment status updates fail to reach the storefront. This approach ensures that data exceptions are addressed before they lead to late shipment warnings or inventory mismatches. The focus remains on maintenance and issue resolution to protect your Amazon standing while your team manages the storefront logic.
Common failures
FBA inventory latency and overselling\n\n
Operational impact: When Amazon FBA stock levels fail to sync back to BigCommerce, the website can display inaccurate stock information. This leads to lost sales or overselling when units sell on BigCommerce despite being exhausted in the Amazon warehouse. This causes poor customer experience and requires manual work from CX teams.\n\n
Prevention / Action: The integration should poll for FBA inventory levels on a defined schedule, treating Amazon as the source of truth for FBA stock. This data updates the inventory level in BigCommerce. Monitoring alerts operators if a SKU update fails.\n\n
Delayed FBM dispatch confirmations\n\n
Operational impact: For merchant-fulfilled (FBM) orders, delays in sending tracking numbers to Amazon impact the Late Shipment Rate. This metric is critical for account health and Buy Box standing.\n\n
Prevention / Action: The integration prioritises dispatch updates. The process triggers an update to Amazon when an order is marked as 'Shipped' in BigCommerce. Retry logic manages transient errors to ensure tracking numbers are posted correctly.\n\n
Amazon payout reconciliation gaps\n\n
Operational impact: Amazon payments are aggregated and do not easily match individual BigCommerce orders. Finance teams often manually decode settlement reports to account for fees and refunds, creating reconciliation debt.\n\n
Prevention / Action: The integration retrieves and parses Amazon Settlement Reports. Logic maps transactions back to orders using a common reference to allow for accurate journal entries and fee allocation.
Frequently asked questions
If I use FBA, how do I stop my BigCommerce store showing 'out of stock' when I have inventory at Amazon?
This occurs when FBA stock levels fail to sync back to BigCommerce. We treat Amazon warehouses as a distinct inventory location, typically pushing FBA availability to the BigCommerce item record. This prevents lost sales where stock is physically available but invisible to your web store customers.
We ship our own orders (FBM). How do we protect our Amazon account health?
To protect your Late Shipment Rate (LSR), the integration must push fulfilment status and tracking numbers from BigCommerce to Seller Central before the 'Ship By' deadline. Delays in this flow can trigger account health warnings and jeopardise Buy Box eligibility. The design ensures status updates are synced to meet Amazon's performance metrics.
How do we prevent overselling stock tied up in a 'Pending' Amazon order?
Overselling often happens when the integration ignores Amazon orders in a 'Pending' state. We account for these pending orders by ringfencing stock immediately, ensuring the available quantity pushed to BigCommerce reflects all Amazon commitments.
Which system owns the product catalogue?
BigCommerce typically acts as the master source for SKUs, descriptions, and pricing. Seller Central then consumes this data to update marketplace listings. This approach prevents issues where price changes or attribute updates are missed on one channel, leading to customer friction or margin loss.
Can we import real customer emails from Amazon for marketing?
No. Amazon obfuscates customer data via an encrypted proxy. While the integration creates a customer record in BigCommerce to process the order, it uses an anonymised Amazon email address. Any downstream marketing automation will only see the proxy address for Amazon-originated records.