Phase control codes can be used only for the order types for which phase-based maintenance is activated. Phase control codes can be activated for an order header and or an operation. If phase control code is activated for a maintenance order for blocking a (sub)phase, then the order will not move to the (sub)phase until the phase control is deactivated or removed. Phase control codes help to control the movement of orders or order operations from one (sub)phase to another (sub)phase. User defined statuses can still be used in OP/Private cloud systems whereas it’s not allowed in public cloud systems as of now.
The concept of phase control is similar to that of user defined status but not a one-to-one replacement. For maintenance order and operations, SAP introduced configurable ‘Phase Control Code’ to allow customer to control the transition of Subphases/Phases.
