Document number GAP

Dear Friends,

I need your help. I got a ticket like this... When my customer is running Document GAP Report Program Two documents is came like need further investigation.

Other documents why its not pick up came reason but these two documents came description need more investigation.

I want to find that description what is that documents its belongs to either fi, sd, mm or any other how to find it.

I checked in FI FB03, SD VF03, MM MB03.

But i'm not able to find those two documents.

Any one can help me how to find the details.

Thanks & Regards

Sarita