A cross-plant planning scenario is a special planning process that allows you to carry out material

requirements planning for various plants centrally. This facilitates the production of a product in

another plant and it also guarantees a smooth flow of materials between different plants. In a cross-

plant planning scenario, you can assign multiple maintenance plants to a planning plant (n: 1) or

multiple planning plants to a maintenance plant (m: 1). This means that you can plan and execute

maintenance orders in different plants using a common planning plant or a common maintenance

plant. There is no limit on the number of maintenance plants that can be assigned to a planning

plant, so answer B is incorrect. A cross-plant planning scenario is also possible across different

company codes, as long as the plants belong to the same controlling area. Therefore, answer D is

also incorrect. Reference: Cross-Plant Planning | SAP Help Portal and SAP S/4HANA Asset

Management: Plants from a Maintenance … - SAP PRESS