Is Google's Product field 'This is a custom product' available in the Shopify API?
Shopify's official Google Shopping app stores the data in Product Metafields and they can be accessed with the namespace 'google' where you have various keys available like
'MPN'
'google_product_category'
'google_product_type'
'title_tag'
description_tag'
'condition'
etc.
However, one field that seems to be missing is the 'This is a custom product' that is available from the Shopify Admin / Google fields editor. Does anyone know if it is possible to read/write that field from the GraphQL (or rest) API and how?
