- Metafields on app resources now require a definition with Customer Account API permission to be returned via the Customer Account API.
- Calls to the Customer Account API for app metafields lacking a definition will return no value, so update those metafields and create definitions (via metafieldDefinitionCreate or declarative TOML).
- Only app‑owned metafields are affected; Customer and Order resource metafields remain unchanged.
Metafields now require a definition to be accessed through the Customer Account API
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