Hi Nadezhda Rukavishnikova,
Now there are two cases here. First case is that if you already have a Production Tenant then migrating screen layouts, all extension fields, language adaptations and custom reports from test tenant into production is not possible. You have to manually do it. For migrating Org Structure from Test to Production can be done. For that you can report an incident to SAP and we will extract the same from your test system and give you the file for the same. Then you migrate the Org structure using the Migration tool in Production system.
Second case is that if you don't have any Production system till now, then while requesting Production tenant you can request for solution profile copy of Test system. In that casescreen layouts, extension fields, language adaptations and org structure will be copied into Production. Custom reports will not be copied.
Regards,
Anurag Nath