Exchange online retention Policy and Microsoft teams policy

Hi,

since the template for user creation is unable to assign mailbox retention policy and unable to assign teams policy. I think the only way would be using the custom attribute > powershell script.

Currently i am using the script below. However there is no error at all and the script isn't applying. When i ran the script below and specify the UPN manually, it definitely works. Any idea?

#import password file

$pword = Get-Content #removedduetoprivacy

$365Cred = New-Object #removedduetoprivacy

#connect to Microsoft teams admin

connect-microsoftteams -credential #removedduetoprivacy

#Connect to Office 365 Exchange

Connect-ExchangeOnline -UserPrincipalName #serviceaccount -ShowProgress $true -Credential #removedduetoprivacy

#Set the App Permission Policy

Grant-CsTeamsAppPermissionPolicy -PolicyName "Company Prod App Policy" -identity %userPrincipalName%

#Set the App Setup Policy

Grant-CsTeamsAppSetupPolicy -identity %userPrincipalName% -PolicyName "Company Prod App Setup Policy"

#Set Retention Policy to 6 Months