Help using SMLets in workflow powershell script

Question

Hello,
I have written a powershell script in a workflow to help me perform a process. The idea is this: We have an extended Incident class and a custom RMA class, users will sometimes need to launch an RMA from an incident, but never an incident from an RMA or
an RMA by itself. Therefore, source cardinality I assume is 1 and target cardinality is 2 (unlimited). The RMA NEEDS TO BE ASSOCIATED (related) to the ID # of the Incident Request. So, if you click on the Incident and go to related items, you should see the
RMA id # there, and when you go to the related items of the RMA, you should see the appropriate IR # there. The workflow is launched by trigger: when an object of the RMA class is created.
The workflow contains the following powershell script:
# Load the SMlets module
Import-Module SMlets
# Get Date
$date = ((Get-Date).AddDays(-1));
# Set ClassName
$ClassName = Get-SCSMClass -Name Flexity.RMA.Class;
# Get the RMA Class
$RMAClass = Get-SCSMObject -Class $ClassName | where{$_.CreatedDate -gt $date};
# Set DisplayName, Title and Description to RMAx
foreach ($RMA in $RMAClass)
 {$RMANumber = $RMA.RMA_ID; $RMA | Set-SCSMObject -PropertyHashtable @{"DisplayName"  =  $RMANumber; “Title” =  $RMANumber; ”Description” =  $RMANumber;  
So I can get the RMA objects created, and properly name them so they show up as RMA{#} but still have not figured out how to get the parent incident and relate it to the appropriate RMA #... Any help would be greatly appreciated!!!!!

Answer 1

@Anders
For Service Manager 2010, numbers larger than 1 in a cardinality statement are evaluated as “unlimited” when an MP is imported into Service Manager. This means that MaxCardenality=“2” is the same as MaxCardenality=“2147483647”. Has this changed from 2010
to 2012?
@Thomas
You are indeed correct but I didn't receive any response in there from my last post so I thought it was dead by now. I have also progressed MUCH further from when I had posted that question, so I figured I should just make it a new topic as the topic of
the question has become much more specific. I will link this post in there to be used as reference.
I actually ended up figuring this out, let me know what you guys think and if it can be optimized in any way, or if you see any error checking I should add in somewhere.
Thank you all for your help, especially with your detailed responses Thomas
My original idea was to have a workflow and that workflow got launched when an object of the RMA class was created, regardless of HOW it was launched through console task or custom control or whatever. However, I ended up using a console task, which when clicked
launches my script :)
Code:
# Creates a variable called IncidentID and points Incident # to it for use within the script
Param([string]$IncidentID)
# Load the SMlets module
Import-Module SMlets
# Get the Incident Class
$IncClass = Get-SCSMClass -Name System.WorkItem.Incident$
# Get the RMA Class
$RMAClass = Get-SCSMClass -Name flexity.RMA.class
# Build the Filter String
$FilterStr = "ID -eq " + $IncidentID
# Find the Incident we need to link to an RMA
$Inc = Get-SCSMObject -Class $IncClass -Filter $FilterStr
$RMAIncText = ["Linked to Incident " + $Inc.ID + ""]
$RMADescription = $RMAIncText
New-SCSMObject -Class $RMAClass -PropertyHashtable (@{Title = $Inc.Title; Description = $RMADescription})
# Find the new RMA to be linked
$FilterStr = "Description -eq '$RMADescription'"
$RMA = Get-SCSMObject -Class $RMAClass -Filter $FilterStr
#Set RMA Number Variable
$RMANumber = $RMA.RMA_ID;
#Clean up DisplayName, Title and Description 
$RMA | Set-SCSMObject -PropertyHashtable @{"DisplayName"  =  $RMANumber; "Title" =  $RMANumber; "Description" =  $RMANumber;   }
# Create the relationship between the two items
$RWIClass = Get-SCSMRelationshipClass -Name System.WorkItemRelatesToWorkItem$
New-SCSMRelationshipObject -Relationship $RWIClass -Source $Inc -Target $RMA -Bulk
New-SCSMRelationshipObject -Relationship $RWIClass -Source $RMA -Target $Inc -Bulk
# Unload the SMlets module
Remove-Module SMlets