Re: need to change the Approver of the Change Request in HP-PPM
I'm not sure if you need to change the approver for a specific request or if you have to change the approver of a specific step in the workflow for a certain request type.
I think you are looking for the second one. To do this, you have to open the Workbench and go to Configuration / Workflows, look for the workflow you need to update and open it by double-clicking it. Once opened, look for the step you need to change the approval of by double-clicking it and go to "Security" tab. You can change there who is the approver of this step.
You can find all this information in the "Chapter 7: Configuring Workflow Components" section of the "Demand Management Configuration Guide".