After reviewing the exercise several times, I am getting this error:
Step not yet complete... here's what's wrong:There was an unexpected error in your org which is preventing this assessment check from completing: System.QueryException: List has no rows for assignment to SObjectIs any want suffering the same issue?Any tip?Thank you very much.
25 respostas

It eventually worked for me. I had disabled 2 partner contacts then re-enabled them, and renaming First and last names of the corresponding disabled users fixed it.