Trying to add an attachment to the RMA logical unit and getting an error

Go to the ‘Object Connections’ window (Solution Manager > User Interface)

Then create a new line and add below details

1. LU Name - ReturnMaterial           
2. View Name - RETURN_MATERIAL             
3. Package - RETURN_MATERIAL_API                         
4. Service List - DocReferenceObject^
5. Then save the line, RMB on it and select ‘Refresh Cache’
6. Then restart the application and start the ‘OCT’ process

when I attempt to do what you have suggested I only see this

Can you please do it in the ‘Object Connections’ window

I’m sorry. I was in the wrong screen.  This worked perfectly.

Thank you.

Great, Glad it worked perfectly.