Skip to main content
Question

Changing Email Address

  • July 9, 2026
  • 1 reply
  • 15 views

I am currently the admin on our Box Business account on a trial, and I am trying to change the primary email/login associated with the account to my preferred business email address. 

However, whenever I attempt to add or switch to the new email address, Box gives me an error saying the email is invalid or unavailable for use. 

I tried using my business email address to sign up for the free trial, but it said that it was invalid. I proceeded to use my personal email account instead.  

I’d like assistance in setting my business email as the primary email address, and if it’s possible if it's linked to an old Box account.

 

1 reply

Jey Bueno Box
Forum|alt.badge.img
  • Community Manager
  • July 9, 2026

👋 Hi ​@oache88, welcome to the Box Community! I’m happy to help.


An email address can only be associated with one Box account at a time. If you’re seeing an “unavailable” or “invalid” error, it means that email is currently linked to another account.


To resolve this, you can follow one of the paths below:

  • If you still have access to the old account — Log in and change its email to one that isn’t linked to any Box account. This will free up the original email so you can use it on the new account. You can follow the steps in Login and Email Addresses to update the primary email.

  • If you no longer have access (e.g., the account is deactivated) — Please contact our Billing team at billing@box.com. They can check the account status and determine whether it can be reactivated or if the email can be released.


Thank you, and feel free to reach out anytime if you need further assistance.