Mark the asset review record with whether a request exists or where and when it was sent.
Send the current draft to its reviewer with the review question.
Your campaign reviewer gets the current draft and a clear request, while the card shows when the email went out.
Send the current creative file with its review question.
Your campaign reviewer gets the right file and question, while the review row keeps a link to the request.
Show whether the current design version already has a review request.
Your asset row shows whether the current file version already has a review request, so your team can avoid asking twice.