Stock synchronization looks simple until the first conflicting update arrives. A webshop, ERP, PIM, warehouse process and marketplace can all hold related information, but they should not all be allowed to decide the same value.
Decide who owns each piece of data
Before building an integration, define the source for product descriptions, prices, stock, availability and order status. The answer can differ by field, but it must be explicit. Otherwise the sync becomes a loop of overwrites and manual fixes.
Use queues for work that can wait
Product and stock updates can be processed reliably in the background, with retries and logs, instead of making customer-facing requests wait for external systems.
Make failures visible
Teams need enough context to see what failed, why it failed and whether the job can be retried safely. Silent failures are worse than a visible exception.
Synchronization should match the real fulfilment model
Zeka uses ERP/PIM-connected flows with scheduled and queued stock synchronization, alongside multiple warehouse and store availability. The useful question is not just how to move a number into Shopware; it is how the number supports pickup, reservations and the next customer decision.
If product, stock or order data needs to move reliably between your systems and Shopware, start with the integration scope.