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Likely cause: Shopify automatically removes webhooks that consistently fail to respond. If Upstack’s webhook endpoint experienced downtime or returned errors for 48+ hours, Shopify may have deleted the webhook subscription. Fix:
  1. Go to Settings → Sources → Shopify in your Upstack dashboard.
  2. Check the Webhook Status section. It lists all registered webhooks and their health.
  3. If webhooks show as Inactive or Not Registered:
    • Click Re-register Webhooks. Upstack will re-create all required webhook subscriptions with Shopify.
    • This process takes about 30 seconds.
  4. After re-registration, trigger a test event by placing a test order in your Shopify store (you can use Shopify’s Bogus Gateway for test orders).
  5. Check the Live Event Stream for the incoming webhook event within 2 minutes.
  6. If webhooks fail to register, verify that your Shopify plan supports webhooks (all paid plans do — the Shopify Starter plan has limited webhook support).
Still stuck? Contact support@upstackdata.com with your Pixel ID and a description of the issue. We typically respond within a few hours.