FlowRelay FlowRelay
View FlowRelay for Shopify Flow

Replace custom intake

Move a custom webhook receiver into FlowRelay.

Start with one receiver you understand well. Keep the current route available while you test FlowRelay, and make sure one person owns both the cutover and the rollback.

Read the receiver migration guide Move it with an authorized agent

Choose a low-risk receiver to move first.

Start with a useful receiver that the team understands, not the most critical one. You should know who owns it, how to test it, and how to switch back.

Sender
You know which system sends the event and who is responsible for it.
Current receiver
You know the URL or service that receives the event today.
Owner
One person owns the cutover and knows who owns both the sender and the current receiver.
Flow trigger
You know which Shopify Flow workflow should receive the event and which FlowRelay trigger it uses.
Test
You know which event to send and what the receipt should show.
Rollback
The old URL still works, and someone can restore traffic to it.

Change how the event arrives—not what the workflow does.

Shopify Flow keeps the same conditions and actions. Only the route into the trigger changes, and the new receipt records what happened at that handoff.

  1. 01

    Inventory

    Write down the sender, current URL, owner, event, Shopify Flow target, expected volume, known failure behavior, and rollback steps.

  2. 02

    Configure

    Create the matching FlowRelay endpoint without changing the Shopify Flow workflow.

  3. 03

    Connect

    Add or confirm the matching FlowRelay trigger in Shopify Flow.

  4. 04

    Test

    Send one representative event and check authentication, mapping, Flow readiness, and handoff status in the receipt.

  5. 05

    Switch

    Send live traffic to FlowRelay only after the test passes and the rollback steps are clear.

  6. 06

    Retire

    Remove the old receiver only after the FlowRelay route has worked reliably with live traffic.

Keep rollback boring.

Do not retire the current receiver while you are still learning how the FlowRelay route behaves. Record who can switch traffic back, which URL to restore, how to make the change, and what would trigger a rollback.

Switch only when: the test event produced the expected receipt, the Shopify Flow trigger was ready, and someone other than the implementer knows how to restore the old route.

Some endpoint inventory is manual.

FlowRelay cannot automatically find webhook URLs hidden in private repositories, serverless functions, installed apps, middleware routes, or automation tools. Before setting a cutover date, identify where the sender posts today and who owns that receiver.

Move one receiver, test it, and keep the old route ready.

Once the receipt confirms the handoff and another operator can restore the old route, you can plan the next receiver.

Install FlowRelay Read the migration guide