Not much extra to add here. I’ve seen a lot of merchants doing this exact use case.
We do have plans to add an easier way to set metafield “references” like page but it’s likely not coming short-term.
Topic summary
A merchant is implementing product metafields for size chart pages (e.g., Mens Underwear, Girls Bras) and wants to automate assignment via Shopify Flow when new products are added.
Proposed workflow logic:
- Trigger: Product added to store
- Check if metafield is empty
- Check if product tags match specific categories
- Update product metafield to corresponding size guide page
Technical challenges identified:
For “Page reference” type metafields in Flow, users must manually obtain the page ID (found in the admin URL’s last segment) rather than selecting from a dropdown, making automation less straightforward.
Recommendations from community:
- Consider using page handles instead of page references, as they’re easier to obtain and use in Liquid code
- Manual assignment may be more practical depending on the volume of edits
- Custom theme coding will likely be needed to display this metafield type on the frontend
- Shopify has plans to simplify setting metafield references, but no short-term timeline available
The discussion remains open regarding the best implementation approach balancing automation versus manual effort.
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