How to enable organization customization manually?

Problem:

When you wish to backup mailboxes in an Exchange Online tenant using RecoveryManager Plus, the global administrator account used to configure the tenant with RecoveryManager Plus must be provided with impersonation rights . For impersonation rights to be assigned, organization customization must be enabled . When organization customization is not enabled, RecoveryManager Plus will automatically try to enable it . I f unsuccessful , you’ll have to manually enable organization customization for your Exchange Online tenant.

Solution:

This post explains how you can manually enable organization customization.

Open an elevated PowerShell prompt.
Modify the execution policy to remote-signed using the following cmdlet.

C:\Windows\system32> Set-ExecutionPolicy RemoteSigned

Connect PowerShell to the Exchange Online tenant using the following cmdlet.

C:\Windows\system32>$O365Cred = Get-Credential

Provide the credentials of the global administrator when prompted.

Create a PSSession to Office 365.

C:\Windows\system32> $Session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://outlook.office365.com/powershell-liveid/ -Credential $O365cred -Authentication Basic –AllowRedirection

Provide the credentials of the global administrator when prompted.