If any mailbox items in your organization have retention policy tag {0} applied to them, changing the Retention ID will remove ...

If any mailbox items in your organization have retention policy tag {0} applied to them, changing the Retention ID will remove the tag from those items. These items will inherit retention policies that move or delete items from tags on the parent folder or the mailbox if such tags exist. If not, no move or delete actions will be enforced. Do you want to continue?