Change User Assignment required to Yes using powershell/azure CLI for enterprise application

You can use PowerShell to set the appRoleAssignmentRequired property on the service principal.
Reference: https://docs.microsoft.com/en-us/azure/active-directory/manage-apps/what-is-access-management#requiring-user-assignment-for-an-app

#Get current value first
Get-AzureADServicePrincipal -Filter "displayname eq 'My Test App'" | select displayname, AppRoleAssignmentRequired
#Change value to yes
Get-AzureADServicePrincipal -Filter "displayname eq 'My Test App'" | set-AzureADServicePrincipal -AppRoleAssignmentRequired $true
#Confirm the value changed
Get-AzureADServicePrincipal -Filter "displayname eq 'My Test App'" | select displayname, AppRoleAssignmentRequired

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