Running Orchestration workflow gives the below error: The term 'Get-DistributionGroup' is not recognized as the name of a cmdlet, function`, script file, or operable program.

Orchestration activity is failing with below error in ECC Queue:

<hresult>-2146233087</hresult>
<error>`The term 'Get-DistributionGroup' is not recognized as the name of a cmdlet, function`, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.HRESULT: [-2146233087]
Stack Trace:
at System.Management.Automation.ExceptionHandlingOps.CheckActionPreference(FunctionContext funcContext, Exception exception)
at System.Management.Automation.Interpreter.ActionCallInstruction`2.Run(InterpretedFrame frame)
at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)
</error>

All Versions.

The script which is supposed to run through Orchestration activity should first be executed from the MID server's command prompt.

In this case, the 'Get-DistributionGroup' is not installed or configured on the MID Server.

1. Get-DistributionGroup is an Exchange cmdlet. You'll need to install the Exchange Management Tools, or connect to a management session on an Exchange server. 
2. Get-DistributionGroup cmdlet is available in on-premises Exchange and in the cloud-based service. 
3. This is used to administer the Active Directory remotely.
4. You can also refer to the below Microsoft documentation regarding installation of Exchange Management tools on your Windows machine: https://docs.microsoft.com/en-us/exchange/plan-and-deploy/post-installation-tasks/install-management-tools?view=exchserver-2019