I'm facing error while trying to add users into the SharePoint groups using CSOM.
When I try to add user by passing user name as "
domain\V*****" (all users start with "v" character), it through error as "\v" is hexadecimal value which can't pass.
Also I tried again by adding escape character like @domain\v******, but no luck..
But I tried the code with some test users like "domain\user1" which is working fine.
Any help would be appreciated..