A trigger point is an object that can be assigned to an operation specifically to trigger a function. You can use the function Start workflow task to start single-step tasks or multistep tasks. The start of the workflow task depends on changes in the status of the operation to which the trigger point is attached.
When a trigger point is reached, the MRP controller who is responsible for the production order can be informed. The MRP controller receives a work item in his or her inbox and can maintain the production order from there.
For more information, for example, about how to inform the production scheduler instead of the MRP controller, refer to the component BC - Basis components, Business Management -> SAP Business Workflow -> Reference Documentation -> BC - Workflow Scenarios in Applications -> Production Planning and Control Workflow Scenarios -> Trigger Points (PP-SFC).