Who owns closing the loop on customer feedback?

A customer flags a recurring problem. The account team hears it, product weighs it against other priorities, and the customer waits to learn what happens next. Collecting feedback is not the same as agreeing who will act on it—or who will report back.

In a sustained customer partnership, what should each side own after feedback is raised: acknowledging it, deciding what changes, or explaining the decision? Where should those responsibilities be agreed so expectations stay clear without promising that every request will be implemented?