Deadline for Request feedback functionality

Summary:

Deadline for Request feedback functionality

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Hi experts, we are deep diving the Feedback Request feature, and we would like to better understand the utility of the field "Provide feedback by": we understood that this can be useful to set a deadline for the feedback-provider, but even if the deadline is expired nothing happens...Which consequences can be implemented when the deadline expires? Is it possible to delete the feedback requests if they expires (this even to avoid that people have many feedback requests to manage, since they can refer also to previous year)? Thanks in advance. Regards