Update product metafield with metaobject entry through Shopify flow

Since this is a small set of them, you can hard-code the entries into the metafield. I think you would use the Update product metafield action, and choose “Metaobject” as the type. In the value field, you would enter something like: gid://shopify/Metaobject/123. Be careful to avoid newlines/spaces/etc. The ID for your metaobject can be found in the URL of the entry (just replace that 123 part). Make sure you enter the right namespace and key as well.