MNE has a functionality called "Admin Pool". The Admin Pool will let MNE manage the limit of 9 PowerShell sessions per tenant.
Since one of Microsoft’s throttle limits is applied per admin account, Migrator for Notes to Exchange can run multiple admin accounts simultaneously, even across separate machines, each set to migrate with only one thread at a time. The net throughput then becomes a function of the sum of all these multiple accounts’ processing threads—one per admin account.
If you would like to migrate 9 users simultaneously, then you would set up an Admin pool account to be 9 or more accounts in size. This pool of accounts will be utilized across the available MNE machines.
