Business Management Error: You are attempting to create a user with a domain logon that does not exist. Select another domain logon and try again.

Question

Hello,
Suddenly the working CRM is being stopped for some group of users.
I drilled down to the issue and have checked that the users from Domain in which CRM is installed are having CRM access.
But for other domain user having problem to access CRM.
I tried to add a user from a domain which is not of CRM domain then it gives following error.
"Business Management Error: You are attempting to create a user with a domain logon that does not exist. Select another domain logon and try again.
<Message>LookupAccountNameW failed with error</Message> "
The change is made - AD group have upgraded Activer Directory server to 2012 R2
Please help as the Production CRM is not working for other domain user.

Answer 1

We have Activer Directory Structure like below.
One Root Domain says A
and there are multiple child domain like B,C,D etc...
B,C and D are all in same level,they are child of A domain.
There are two way transitive trusts between A and all the child Domain.
But there is no trust in between B and C and so on.
Our CRM server is in B domain and B domain's user can access CRM but users of Domain C,D and so on can not access CRM.
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