CRM 2011 – Error – You are attempting to create a user with a domain login which already exists

Posted on January 3, 2013

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A quick blog post for you today about a cheeky little error I experienced.

I added a user onto the system and he had the naming convention of firstname.secondname

e.g.

homer.simpson

Then later that day it was decided to use this naming system for the active directory details

homers

when I came to add a new user in CRM it complained the user already existed.

I guessed what happened is that the active directory user was changed from homer.simpson to homers and so when CRM checked active directory the SID or unique active directory id was the same.

 

To get around this problem I renamed the user name from

domain\homer.simpson

to

domain\homers

CRM was ok with this because it wasn’t creating a duplicate user.

So although you cannot delete users you can overwrite them by editing the user name

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Posted in: CRM 2011