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Question

Domain Error

  • August 22, 2025
  • 1 reply
  • 35 views

I am trying to make a user a co-admin in our Box sandbox and I am getting an error about Domains for email addresses.  I then tried to add our domain and got an error to contact support.  Please help. 

 

Warm Regards,

Jennifer Knights

1 reply

Jey Bueno Box
  • Community Manager
  • August 25, 2025

👋 Hi ​@Jennifer Knights, welcome to the Box Community!

 

Due to Box’s zero trust enhancements, we now require every Admin to have a verified domain. In line with this enhancement, one cannot become a primary admin or co-admin without their email domain being claimed/verified.


To make user a co-admin, please make sure that your admin's domain is verified. Please follow the steps outlined in this link: Domain Management, Verification, and Auto Enrollment.


Once the domain is claimed please proceed with adding co-admin to your Sandbox. You can check Granting And Modifying Co-Admin Permissions to learn more.

 

If you're still encountering an error when assigning a co-admin after verifying the domain, please submit a ticket to our Product Support team for further investigation. Thank you! 😊