SHOPIFY FLOW - Automation to unpublish products when price goes to (zero) 0

Shopify Apps

Topic summary

Seeking a Shopify Flow automation to prevent zero-priced items from being purchasable after data sync errors. The goal is to automatically unpublish products and notify staff when a product/variant price becomes 0.

Proposed workflow:

  • Trigger: Product or variant price updated/changed
  • Condition: Price is equal to 0 (or less)
  • Actions: Unpublish the product and send an email notification

Context: Product data is managed on a local server. When a product code changes and disconnects, it can push a price of 0 into Shopify, leaving items purchasable at zero cost. The user wants to detect and mitigate this immediately.

Current status: The main blocker is finding a suitable Shopify Flow trigger that fires on price changes. Shopify Support advised asking the community. No solution or confirmed trigger has been identified yet; the request remains open.

Summarized with AI on December 15. AI used: gpt-5.
1

I am looking for an automation flow that triggers when a product/variant price is changed/updated.

Our Product Data is stored on a local server and when a product gets disconnected ( usually when the product code is changed on our server ) it pulls through a 0 price - which customers can then purchase. I want to be able to monitor this error.

So the Workflow should look something like this:

Trigger: When product price changed

Condition: Check if the Price is Equal to 0 or less

Then: Unpublish the Product & Send an Email notification

Is there any way to make this Flow possible?

I contacted Shopify support which recommended I ask this community.

My biggest stumbling block is to find the correct trigger that will work.