All Adobe Sign User IDs are associated with an email address. You can change the email address that is associated with your Adobe Sign User ID. However, the system only allows an email address to be associated with a single User ID at any given time.
If you change your email address, your documents and shares persist.
This error means the email address you're trying to use is already associated with a different User ID.
Don't worry, it happens often. If someone sent something through Adobe Sign to that email address, our system holds that email address just in case you want to use it.
Whether it was intentional or not, the email address you want to use is now in our system. To use this email, it's necessary to access this User ID so you can free up that email address.
In this example, I currently have the email address email@example.com, but I want to use firstname.lastname@example.org. When I try to change my email address to email@example.com, I get the error message above.
First, I try to log in to the firstname.lastname@example.org account which uses the email I would like to free up. When I try to log in, I get this message:
To free this email address, I add a .arc to the end of the current email address I'm using. You can add anything you'd like, but we prefer to add .arc to signify the email address is archived.
Effectively, I'm changing email@example.com to firstname.lastname@example.org, making it a nonexistent email address and freeing up email@example.com.
Then, I click the Update button.
Adding the .arc to the end of the email address makes that email address unusable since the resulting email is not a real address.
I am taken to a page that notifies me a verification email has been sent to firstname.lastname@example.org. But, I don't need to worry about that since it isn't a real email address.
Now I'm going to logout of the account I'm in and login to the User ID I want to change the email address for (email@example.com).
Once I'm logged in, I click my name and My Profile. Again, I'm taken to the page where I can change my email address and I enter firstname.lastname@example.org into both fields and click Update.