Workflow WebhooksWorkflow Webhooks

Update customer metafield when webhook received

When a loyalty, CRM or points system calls your webhook with an email address and a number, store it on the customer in the metafield custom.loyalty_points. Show it in the customer account, in emails or in Flow.

One trigger from Workflow Webhooks and Shopify's built-in actions, no other app needed.

The workflow in Shopify Flow: Update customer metafield when webhook received
The complete workflow as it looks in Shopify Flow.

What it needs

A webhook in Workflow Webhooks with this payload mapping. See Payload mapping and Flow variables.

Field What to map to it
fieldOne The customer's email address
fieldTwo The points balance as a whole number, for example 250

A call to the webhook then looks like this:

bash
curl -X POST https://<your webhook URL> \
  -H "Content-Type: application/json" \
  -d '{"email": "jane.doe@example.com", "points": 250}'

Get the workflow

  1. Download the .flow file attached at the bottom of this page.
  2. In your Shopify admin open Flow, click Import and choose the file.
  3. Check the steps, then click Turn on workflow.

The file is an export from Shopify Flow itself. Do not edit it by hand; change the workflow in Flow after importing it.

How it works

  1. Webhook Trigger starts the workflow each time your webhook URL is called and hands it the mapped fields.
  2. Get customer data looks up the customer with the query email:{{fieldOne}} and keeps at most one result.
  3. For each runs once for the customer it found, and not at all when no customer matches.
  4. Update customer metafield writes {{fieldTwo}} to custom.loyalty_points as an integer.

Make it yours

  • Change the namespace and key to a metafield you already use, for example loyalty.tier with type single line text.
  • Add Add customer tags after the metafield step to mark customers above a points threshold.

Next steps