Description :
Resolution is :
Click here to Close Request
If not satisfied, reply to this mail to re-open the Request

Requested have closed request by clicking on Close request. After few hours requester have replied on closed request to reopen request as same issue happen again. However in SD+ request is not getting reopen as well as not able to find mail in conversation that request have replied on closed request.

On self service service portal setting " When the requester replies through E-mail / Portal to the closed requests. Perform the following:" is selected as  ReOpen the request always.

SD+ version