Handling Duplicate Shopify Webhook Events (And Why You Must) (opens in a new tab)

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You built a Shopify integration. It works great in dev. Then in production, a customer gets charged twice. Or an order ships twice. Or your inventory goes negative overnight. The culprit almost always? Duplicate webhook events. Shopify guarantees at-least-once delivery , not exactly-once. Your endpoint will receive the same event more than once. Here is how to handle it properly. Why Duplicates Happen Shopify retries a webhook if your server does not respond with 2xx within 5 seconds . It…

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