Re: I want to enable impersonation but cannot with your E1 plan!

Hi Vishalt,

Do you mean that you want to activate user Impersonation in Exchange Online? Can you capture a screenshot about your situation?

In addition, could you please try to create the admin roles through PowerShell? The following articles are for your reference:

Understanding Management Roles

Understanding Management Role Scopes

ApplicationImpersonation Role 

Configuring Exchange Impersonation 

Thanks,
Maggie Li