An agreement can have the status planned, active, negotiated, or closed. The planned status means that the agreement is being entered and will change to active whenever it is ready to be used. In order to create a customer schedule and run it through the schedule flow, the customer schedule agreement part must be activated.
Note: You only need to activate a schedule agreement part, if you have altered the conditions after the activation on the schedule agreement.
The customer schedule agreement part has to be entered in order to receive status active.
If the agreement is changed to active, the agreement will be valid and you can create customer schedules for this particular agreement.