Update the Deprovisioning Report Record in a Script called by a Workflow

Hello, Im hoping someone can give me a hand.

Im trying to update the users Deprovision Report record in a script after I have performed a function.. the script is being called by a workflow.

This is an example what I tried..

Function Oninit($Request)

{

            $action = $Request.AddDeprovisioningReportRecord()
            $action.Name = "Deprovisioning Function"

$action.AddListItem ("The Function has been performed")

            $action.IsSuccess = $true

}

I would get an error saying that the "You cannot call a method on a null-valued expression"

Then I tried 

Function Oninit($Request)

{

            $action = $workflow.FoundObject("Search for Disabled Accounts").AddDeprovisioningReportRecord()
            $action.Name = "Deprovisioning Function"

$action.AddListItem ("The Function has been performed")

            $action.IsSuccess = $true

}

This one completed successfully. but nothing was added to the deprovisioning report.

any thoughts?