Distributed Shopify Inventory Sync: Architecture Guide for Scale

<p>Most Shopify middleware works fine in staging. It breaks in production, during a sale, at 11pm on a Friday.</p> <p>After auditing dozens of integrations, the failures are

<p>If you sell across more than one channel from a single China-origin inventory pool, the hard part is not the warehouse — it is the reconciliation layer between channel order

<p>Your Shopify integration works great. Until it does not.</p> <p>You hit a traffic spike. Webhooks start failing. Your API quota drains in seconds. Orders process out of order.

<h2> Introduction </h2> <p>Most Shopify stores start simple. One theme, a few apps, the Admin API, and a payment provider.</p> <p>Then growth happens.</p> <p>You add a custom

<h2> TL;DR </h2> <p>Retailers process thousands of inventory transactions every second across physical stores, eCommerce platforms, warehouses, suppliers, and fulfillment centers.

<p><a href="https://artovnia.com/" rel="noopener noreferrer">Artovnia</a> is a Polish marketplace for handmade goods, built on Medusa.js. Sellers list their products, buyers order

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<p>You built a Shopify integration. It works great in dev. Then in production, <br /> a customer gets charged twice. Or an order ships twice. Or your inventory <br /> goes