Shopify Flow guides

Guides for external events into Shopify Flow.

Use these pages when you need to connect an outside system, troubleshoot a missing Flow run, replay carefully, move from custom code, or decide whether to build your own intake.

Choose by job

Start with the page closest to your problem.

Each guide explains what to check, what FlowRelay can show, and where the technical docs take over.

Need setup details? Start with the first endpoint docs, or use the swapover guide if you are replacing an existing receiver.

Connect External webhooks into Shopify Flow

Use this when you know the sender and want the first reliable handoff.

Troubleshoot Why did my Flow not run?

Use this when an expected external event did not seem to trigger Shopify Flow.

Recover Replay external events safely

Use this when an event may need another handoff and side effects need review.

Migrate Move a custom receiver

Use this when an existing receiver works, but recovery depends too much on custom code.

Decide Compare build vs buy

Use this when you are deciding whether custom intake is worth running yourself.

Partner Agency & developer partner kit

Use this when a partner is moving one client event path and needs proof, rollback ownership, and safe support boundaries.

Next step

Start with one event you can check.

Then create one endpoint, connect the matching Flow trigger, send one safe event, and inspect the receipt before expanding the setup.

Install from Shopify App Store Open setup docs