Decide which system owns each fact
A store and an ERP may both hold products, customers, stock and orders. Choose the authoritative system for each field before connecting them. For example, an ERP may own available stock while WooCommerce owns the storefront description. Specify what happens when a product is missing or an order changes after fulfilment starts.
Combine events with reconciliation
WooCommerce webhooks can notify another system about events such as order changes. An integration can receive that event, validate it, and queue the corresponding ERP update. Also plan a reconciliation job that compares recent records, because a complete process needs a way to detect missed or failed updates.
Handle repeats and failures deliberately
Match records using stable order and product identifiers. A repeated delivery must update the same ERP order rather than create another one. Keep a log of each attempt and show failures in a review queue. Validate webhook authenticity, keep credentials on the server and avoid logging unnecessary customer details.
Test the difficult cases
Test refunds, cancellations, partial fulfilment, out-of-stock products and simultaneous stock changes. Agree whether stock represents physical quantity, available-to-sell quantity or a value after reservations. Begin with a small product set and confirm the accounting and fulfilment outcomes with the responsible team. Expand once the integration can explain what happened to each order and recover safely when a service is temporarily unavailable.
Further reading: WooCommerce webhook documentation