Shopify Flow guides

Choose the guide that matches the job.

Connect an outside system, trace a missing handoff, replay carefully, replace a receiver, or decide whether intake is worth maintaining yourself.

Investigate or recover

Start here when an expected event is missing or a retained event may need another handoff.

An expected Flow run is missing Find where the event stopped

Use the receipt state to decide whether the next check belongs to the sender, FlowRelay, Shopify Flow, or a downstream app.

A retained event may need another handoff Decide whether replay is safe

Review the original receipt, current readiness, and possible duplicate business actions before replaying.

Set up or change the path

Use these guides to connect a sender, replace a custom receiver, or decide whether your team wants to maintain webhook intake itself.

An outside system needs to trigger Shopify Flow Connect an external webhook

Connect a sender, send one test event, and use the receipt to confirm that Shopify Flow received the trigger.

You want to replace a custom webhook receiver Replace one custom receiver safely

Move one receiver at a time, verify the handoff in Shopify Flow, and keep the old route ready until the replacement is working.

Your team can build a receiver—but does it want to maintain one? Compare ongoing ownership

See what your team would keep owning after launch and what FlowRelay would handle instead.

Connect the automation platform you already use.

Each guide starts with one synthetic event, keeps the credential private, and verifies the sender, FlowRelay receipt, and Shopify Flow run separately.

n8n Trigger Shopify Flow from n8n

Configure an HTTP Request node with Header Auth, a JSON body, and visible non-2xx failures.

Make Trigger Shopify Flow from Make

Configure HTTP v4 with an API key keychain, a JSON body, and failure-aware execution.

Zapier Trigger Shopify Flow from Zapier

Configure a POST action with nested JSON fields, Unflatten, and a private authentication header.

Ready to set up your first event?

Create an endpoint, connect the matching FlowRelay trigger in Shopify Flow, and check one test event in the receipt before sending more traffic.

Set up your first endpoint Install FlowRelay