In SAP S/4HANA Service, the planning plant is the central organizational unit where service and maintenance activities are planned. Key business objects are assigned to the planning plant to structure these activities. A Maintenance work center represents the resources (people or machines) that execute the service tasks and is defined for a specific plant. A Maintenance planner group consists of employees responsible for planning and is also created specifically for a planning plant. Both are essential for organizing the planning and execution of service orders within the designated planning plant.

B. Company code: A planning plant is assigned to a single company code. The company code is a higher-level organizational unit for financial accounting, not an object assigned to a plant.

C. Location: This term is ambiguous. If it refers to a functional location, it is a technical object master data created within a planning plant's structure, not an organizational unit assigned to it.

1. SAP S/4HANA Help Portal - Organizational Structures in Plant Maintenance: "The organizational units that are of primary importance for Plant Maintenance are the planning plant and the maintenance plant... The planner groups are defined for a planning plant." This confirms the direct assignment of planner groups to a planning plant.

Source: SAP Help Portal

S/4HANA 2023

"Organizational Structures in Plant Maintenance".

2. SAP S/4HANA Help Portal - Work Center: "You must assign each work center to a plant." This documentation explicitly states the assignment relationship where the work center (a key object for planning and execution) is assigned to a plant

which in this context is the planning plant.

Source: SAP Help Portal

S/4HANA 2023

"Work Center".

3. SAP S/4HANA Help Portal - Planner Group: "A group of employees responsible for planning and processing maintenance tasks in a plant... You define planner groups for a planning plant in Customizing for Plant Maintenance and Customer Service." This directly links the planner group to the planning plant.

Source: SAP Help Portal

S/4HANA 2023

"Planner Group".