A Shopify event is missing. Where is it?
This FAQ is about Shopify events specifically. For a more general treatment of this question, refer to Why don't I see any events in my task's activity?.
Start by checking status.mechanic.dev and shopifystatus.com for service interruptions. (If you're not signed up for Mechanic status notifications, this is a good time to take care of that!)
⚠️ Please note: these investigations usually conclude that Shopify has simply failed to deliver that specific event webhook. Shopify does not offer a strict guarantee on webhook delivery (see their documentation), which means that the solution is usually to ensure tasks can recover when events go missing.