When preparing event webhooks to send to apps like Mechanic, Shopify uses payloads as defined by a specific version of their Webhook API.
Effective immediately, Shopify events in Mechanic now use webhook payloads from version 2026-01 of the Shopify Webhook API.
‼️ Shopify has flagged these webhook API changes as "Action Required" (source):
- Tax summary webhook "created_at" field now returns UTC timezone
- Tax webhook summary and calculation requests now use Global IDs
- Deprecation of the checkout_and_accounts_configurations/update webhook
References