Frequently asked questions
Short answers to the questions we get most often. If yours is not here, Support has every way to reach us.
Do I need Shopify Flow?▾
Yes. Flow is what runs your automation; this app is the bridge that lets an outside system start it. Flow is free from Shopify.
Can one webhook drive several workflows?▾
Yes. Every Webhook Trigger workflow receives events from all your webhooks, so add a condition on Webhook ID in each workflow to pick the one it should respond to.
Why did my workflow run twice?▾
Either two workflows use the Webhook Trigger without distinct Webhook ID conditions, or your sender retried. History tells you which - two entries means two requests actually arrived. See Duplicate delivery protection.
Why is my request rejected with "mapping field missing"?▾
A field you mapped is not present in the payload. Either send it, or unmap it in Advanced Settings. Full code list in History and troubleshooting.
Can I send more than four fields?▾
Yes - turn on Use whole body to pass the entire payload to Flow as a JSON string alongside the four mapped fields. See Payload mapping and Flow variables.
Can I call the webhook from a browser?▾
Yes, enable CORS on the webhook. Bear in mind anything in browser JavaScript is public, so do not put a static token in front-end code - use a webhook with no token, or proxy the call through your own backend.
Is my payload data stored?▾
Yes, in invocation history, so you can debug and replay. Sensitive header values are masked. Data returned through our REST API and MCP server is additionally PII-masked - see Developer API and MCP.
Can I change the header my token is sent in?▾
Yes - Auth header name in Advanced Settings. Defaults to X-Api-Key. See
Authentication.
What happens if I hit my plan limit?▾
Further requests are rejected with quota_exceeded until the rolling 30-day window drops
below the limit. See Plans and usage.
Do rejected requests count toward my plan?▾
No. Only accepted invocations count. Tests, replays and suppressed duplicates do not either.
Can I replay an old event?▾
Yes, from the invocation's detail page. Useful for building a workflow, or re-running events that arrived while a workflow was broken.
How do I move a webhook to another store?▾
Webhooks are per store. Recreate it on the other store - it gets its own URL and token. The Export button on the webhook page gives you its configuration to copy from.

