Issue
When trying to add a new user account, the error message:
{"Message":"- A user with the same e-mail address already exists.\r\n"}
Even when the e-mail address is not currently in use by any of the accounts.
During the deletion of the account, a task hasn't been executed correctly, causing the above error. Follow the steps below to resolve this issue.
Product
Mobile Service Cloud
Resolution
Go to command.robinhq.com
Select the correct environment
Go to 'Subscription Management' > 'User Management'
Press CTRL + F
Search for the e-mail address used to add the account
Set the deleted account to 'regular'/'collaboration'
The user account is now available through the settings.