Domain has been sucessfully registered/transferred in BA, but in OA it has the status
Undefined. It used to be
Registered before upgrade to OSA 7.0.
The issue is caused by the bug with id #PBA-77677 ("Operations->Domain 'Registrar Status' remain 'Undefined' after domain registration/transfer complete").
The bug is expected to be fixed in OSA 7.0.2. Until it is fixed, the status can be changed manually.