The user that activates Office 365 needs to be in the primary or secondary domain registered in CloudSOC
A tenant registers with CloudSOC with a domain. The Office 365 Securlet is then activated with an admin of the same domain. No additional domain needs to be added.
The activation fails if the admin is from a domain other than the one used to register with CloudSOC.
Multiple domains can be added as secondary domains.
If an admin with an email like [email protected] needs to activate the Office 365 Securlet, then elastica.onmicrosoft.com needs to be added as a secondary domain.
The same applies when the admin has an email like [email protected]
If you would like to add a secondary domain, please contact Customer Support.
In the CASB Tenant, click the Book icon in the lower left side bar to reference the tech note Office 365 Securlet under the Securlets section.