Planning Plant & Maintenance Plant structure is purely based on how the physical org. structure exists.
Generally, Planning Plant will be responsible for Labors, Services & Components. All the work centers & components are created, planned & issued in Planning plant level. This is common practice even though you can create work centers & components at Maintenance Plant & use them.
- If only one Maintenance team & one spare parts location for multiple physical locations, then go for centralized Maintenance.
- If one Maintenance team & multiple spare parts location, then go for De-centralized Maintenance as per the Plant & Storage Locations defined in MM module.
This also includes considering the Authorization of goods issue (if multiple stores & multiple store keepers) & Confirmation point of view (multiple teams & multiple time keeping in-charges) for planning plant level.