Can't save domain settings in instance.
When i try to uncheck this and click save, it shows the error: User already exists (V3-DKcYh)

2 Replies
the problem is that users have to be unique across organizations
when you disable the setting the username will be rewritten to still be the same as before, so they can still authenticate.
do you have a user in another organization which looks like the same as one in the organization where you try to diasble the setting
I have a similar problem where I want to enable this and get the User already exists (V3-DKcYh) error, I have only one single organization and those users are all suffixed. So there must be some kind of ghost user or old usernames preventing this? How could I find out and remove them?