TFS says {oldaccount} is not a member of the Team Foundation Valid Users group, but I am

Question

I'm trying to check in changes to TFS using VS2013. When I hit the submit button, TFS returns the following error, "TF14002: The identity {domain} \ {oldaccount} is not a member of the Team Foundation Valid Users group."
Background: my account name has been changed to {newaccount} from {oldaccount}.  And when the sys-admins changed my account name they did not update my computer itself, so I'm still using C:\Users\{oldaccount}. I can't believe that would make a difference
but you never know....
When I first started working at this company I'm almost certain I set up my TFS Workspace with my old account. But I thought I deleted all that stuff related to my old account and reset everything to my new account (Workspaces and TFS server). My lead tech
has even shown me the account mgmnt screen with my new account name. And I've been able to check out items with my new account name.
I performed the following steps to try to "clean out" TFS:
• I copied all of my changed files to a back-up location.
• I undid all changes in TFS (note that TFS has been allowing me to check out files to edit).
• I deleted the TFS entry in Credential Manager per a suggestion online.
• I deleted my Workspace.
• I even deleted my TFS server.
• I Rebooted my computer.
• I reconnected to the TFS server.
• I rebuilt my Workspace.
• I restored my changed files from my back-up location.
At this point I tried checking-in my changes again but got the same error message as above.
Next, I deleted everything in this folder:
C:\Users\ ...\AppData\Local\Microsoft\Team Foundation\5.0\Cache
... but I'm still seeing the error.
Also, we'd been informed that a number of us need to downgrade from "Ultimate" to "Professional".  I did my downgrade to VS2013 Pro (after the steps above) but I am still seeing the same error.
A comment on another question
here suggested that I shelve my changes without preserving changes locally, then un-shelve and attempt to check-in.  This also did not work, I could shelve my changes and un-shelve, but doing so did not fix the original problem.
Note that I do NOT have access to the TFS server itself - much less permissions to perform any sort of admin on it (and I don't know the person who would) - but might there be a table in the TFS database that still has an entry for my old account that could
be joining to my computer name &/or new account name when TFS goes to look up my account info when I check in my changes? I am getting desperate for an answer!
Any suggestions?
Thanks,
D. Kelley

Answer 1

Hi D. Kelley,
Thanks for the details. Based on your description, you might need to change or update the SID for users. Try identity command to change the username if you never use the new username in TFS. Check this page for more information about
identities command in this
page.
You can also check the table "tbl_Identity" in the tfs_configuration database to see if the new user exists, or it has the old user. Another option is have a check on other machines to see if it works fine. Refer to links below for more information:
https://social.msdn.microsoft.com/Forums/en-US/93568425-a877-4d21-8497-1adc4561b6d3/unable-to-check-in-code-to-tfs-due-to-tf14002-the-identity-old-user-name-is-not-a-member-of-the?forum=tfsversioncontrol
https://social.msdn.microsoft.com/Forums/en-US/acc56859-624f-41bc-b698-cbb5e0b8f525/cant-check-in-code-the-identity-devoldusername-is-not-a-member-of-the-team-foundation-valid?forum=tfsversioncontrol
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