New-MgAgreement cmdlet fails with value cannot be null - parameter name source

[dwanjuhi]

When using the New-MgAgreement cmdlet to create a terms of use file - running the command returns "value cannot be null - parameter name source". Adding a "source" parameter to the New-MgAgreement cmdlet returns tells me "a parameter cannot be found that matches parameter name 'source' - which is correct per the documentation.

This issue was first reported on Stack Overflow

See below screenshot with details:

AB#9286

[peombwa]

Thanks for the repro. This does indeed look like a bug with how this command serializes FileData. I'll repro and offer a fix soon.

As a workaround, I'd recommend you use Invoke-MgGraphRequest as described in the StackOverflow answer.

[dwanjuhi]

Thank you @peombwa 👯

[peombwa]

This is now supported by the command:

$data = @{
	DisplayName = "Contoso ToU for guest users"
	IsViewingBeforeAcceptanceRequired = $true
	Files = @(
		@{
			FileName = "TOU.pdf"
			Language = "en"
			IsDefault = $true
			FileData = @{
				Data =  [System.IO.File]::ReadAllBytes("PATH_TO_FILE.pdf")
			}
		}
	)
}

New-MgAgreement -BodyParameter $data -Debug

See the example at https://docs.microsoft.com/en-us/graph/api/termsofusecontainer-post-agreements?view=graph-rest-beta&tabs=powershell.