Adding Shopify Tags with Shopify Flow to Klaviyo

Shopify Plus

Topic summary

Goal: Trigger a Shopify Flow when a customer tag is added and immediately pass that tag to Klaviyo as a custom property.

Current status:

  • Flow has been active for days, multiple customer tags added in Shopify, but the flow shows 0 runs. Screenshots of the flow and trigger settings were shared.

Key clarifications:

  • The “Customer tags added” trigger does not have selectable fields; tag data appears in subsequent steps. To react only to certain tags, add a condition after the trigger.
  • The trigger should fire on any tag addition. Multiple tags can be added at once, but that should not block the trigger.

Data format guidance for Klaviyo:

  • Avoid concatenating tags (e.g., tags “A” + “B” becoming “AB”).
  • Possible payloads suggested: { tags: [“A”, “B”] } or { tags: “A, B” }. Exact expected format should be confirmed with Klaviyo.

Troubleshooting actions discussed:

  • Test by adding tags to a test/fake customer.
  • Ensure the workflow is active.

Outcome:

  • No resolution yet. Cause of the trigger not firing remains unidentified; further verification with Klaviyo/Shopify Flow behavior is needed.
Summarized with AI on January 7. AI used: gpt-5.
5

Hey Paul,

What I noticed in the description of Customer Tags Added it says there are Fields (attached print screen) where I should choose what customer tag could trigger the flow. But when I try to edit this I can’t find any option or any Fields (attached print screen).

Maybe that’s why my flow is not triggering.

How can I edit that?

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