We have newly created a CF subaccount and added a new administrator user into that account.
While trying to access that Sub account user is getting
"you cannot access this subaccount because you are not a subaccount member or administrator"
And it is not allowed to go to this account.
I have chcked sap notes
3079819 - Unable to access Global Account or subaccount after migration to Feature Set B
2868508 - ERROR: You cannot access this subaccount because you are not a subaccount member or administrator - SAP BTP
and others but it is not helpful.
If in case any of you have any inside please help here.
Thanks in advance.
check if the user you are logging in has the respective roles mentioned here in this help document. Ensure u have logged out successfully and trying to login with the correct user (also try incognito mode)
New roll out came on 25th Jan yesterday, you can take a look at Global Account Explorer see if you can add you as Administrator.