Using the standard data entity Print management destination emails V2 can't be used for customer specific print management settings for mailing upload because a RecId is required to link the settings to the customer, however, this ID is not known upfront. It is not possible to make the link based on CusAccount.

This is not in line with other data entities where a party number or customer account number can be used.
The Idea is to add party number, customer account number or vendor account number in this data entity instead of RecId.