This method is deprecated.
Updates extended fields. This method does not increment the revision.
This method may require higher-level permissions than the caller has, based on their identity and roles and permissions. In these cases, you can ensure the method is called with the required level of authorization by using one of the following:
ID of the entity to update.
Identifier for the app whose extended fields are being updated.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.