CmdID

CmdID / PowerShell / Cmdlets / Test

Test-ApplicationAccessPolicy

Use the Test-ApplicationAccessPolicy cmdlet to test access right of an application to a specific user/mailbox. Exchange PowerShell reference

From the Exchange PowerShell reference 2 parameters Its page in the reference

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Parameters

2 in the Exchange PowerShell reference
-IdentityThe Identity parameter specifies the recipient to test.
-AppIdThe Identity parameter specifies the GUID of the app that you want to test.