Hi Christian,
In regard to the issue, you can use PowerShell to transfer the account info from P Plan to E Plan, for details, please try the steps below:
- Configure PowerShell for Office 365.
- Type in “Get-MsolUser | Export-Csv ‘file path’” after you connect PowerShell to Office 365 with the P plan account, when it’s done, find the .csv file in the file path(i.e. C:\userinfo.csv), modify the columns in the file to meet the bulk import request. For details about the columns, please refer to: Add multiple users with bulk import.
- Then you can either import the .csv file via MOP(Microsoft Online Portal) or PowerShell. for MOP, you can refer to the link in step 2. For PowerShell, you can refer can we create multiple user at a time using PowerShell cmdlets to modify the script and run it in PowerShell with the E Plan account.
Please note this will only import the user info, for the contents in Exchange Online and SharePoint Online, you’ll need back up the files in P Plan, then import them to E Plan.