Proton Rule

Creating an organization needs another user and a custom domain

Catalog row in Vendor License Rules · Cited

Kind: Counting
Statement: Help Center, Create an organization: a business plan needs at least one additional user and a connected custom domain before multi-user support can be enabled.
Applies when: Enabling multi-user support
Applies to: Proton for Business
Related metrics: User (Proton for Business)
Custom email domain