In the integration between SAP Plant Maintenance (PM) and Project System (PS), cost control relies on specific object assignments. A Work Breakdown Structure (WBS) element is the fundamental cost-collecting and budgeting object in PS. Therefore, assigning a budget directly to a WBS element is a standard and core function. When maintenance activities are part of a larger project, the costs incurred on the PM maintenance order are settled to the relevant WBS element. This allows for the consolidation and control of all project-related costs, including maintenance, within the project's financial structure.

B. Maintenance costs can be settled to a network operation.

A network operation is a task and not a primary settlement receiver for costs from another object like a maintenance order. Settlement occurs to cost collectors like WBS elements or cost centers.

D. Budget can be assigned to a maintenance plan.

A maintenance plan is a scheduling and planning tool used to generate maintenance orders. It is not a cost-carrying object itself, so a budget cannot be directly assigned to it.

1. SAP Help Portal - Budgeting in the Project System: "You can assign a budget to a project in the WBS. The budget is allocated to the individual WBS elements in the project." This confirms that WBS elements are the designated objects for budgeting. (Source: SAP Help Portal

Project System > Project Cost Management > Budgeting).

2. SAP Help Portal - Integration with Plant Maintenance (PM) and Customer Service (CS): "If you assign a maintenance or service order to a project

the system settles the costs that are incurred for the order to the project." The primary object for settlement in the project is the WBS element. (Source: SAP Help Portal

Project System > Structures > Integration with Plant Maintenance (PM) and Customer Service (CS)).

3. SAP Help Portal - Maintenance Planning: This documentation details the function of maintenance plans for scheduling tasks and generating orders

confirming they are not budgeting objects. (Source: SAP Help Portal

Plant Maintenance > Maintenance Planning).