Use this activity to plan material lines for standard task. Here, you can plan the material you expect to need to perform the work. You can adjust the expected material requirement during planning. Initially, the material can consist of any part from the part catalog. But when the Service is validated against the site the part must have been entered as an inventory part or purchase part.
As a result of this activity, material lines are connected to standard task. When you link standard task to service, all material lines will be connected to service.