I've created a simple Nintex workflow with one action to update item permissions. See attachments below.
It keeps returning the error, 'the username format is invalid'. Under User or Group Name in the configuration I've both tried to key in a Display Name, email address and Sharepoint group but with the same results.
On the same list item I've created Sharepoint 2010 workflow to update item permissions, and it runs with a successful result.
Any ideas what's causing the error?
Solved! Go to Solution.
One thing I noticed is that you have the Filter set to update all list item permissions. You would probably want to set that to "Update items only when the following is set to":
Also, you should output the value of the Created By user to the History list to see what the value is.
The issue was resolved by reviewing the account used within the Connection Manager.
The account used was in the following format firstname.lastname@example.org or using MFA authentication. After creating a new service account in the following format email@example.com the workflow completed as expected.
Reviewing the following knowledge based article helped resolve the issue.