we have a sql server 2016 which is running on windows server and is part of Active directory domain.
I have provided db_owner permission on an active directory group account(Domain\accountname) and user id(Domain\userid) is member of that group. When user tried with id (Domain\userid) using active directory password authentication via SSMS getting below error:
ERROR:18456 - could not find a login matching the name provided.
Sql server is running in AD domain, user had AD credentials and is part of active directory group account but getting the error.
Kindly help!