Product update webhook on variant metafield update

[KyleG-Shopify]

Hey @Antonio_Chiuchiolo, the difference between your dev and production stores could be related to the variant configuration.

PRODUCTS_UPDATE only fires on a variant metafield update when the product has explicit variants (like Size: S/M/L). Products with only the default “Default Title” variant don’t trigger the webhook on metafield changes, even without any filters applied.

Worth checking: do your dev store products have real variants while your production products only have “Default Title”? That would explain exactly what you’re seeing.

There’s a related thread with more context on a similar issue:

Webhooks and variant metafields

Just gonna throw my two cents in here, along with everyone that’s done it in the last couple of years. At the moment, the behaviour of the products/update-webhook is so that if a product has variants, even if only one, the act of updating a variant metafield triggers the webhook. I don’t think the actual metafield data is in the payload, but I can query graphql for the updated variant metafield based on the fact that I got a notice that the product was updated. It’s noisy as all hell, but it wo…