Your customer's projects are subject to recurring changes of date.

To set up the requirement date for the component so that it will be in stock 5 days in advance of the assembly activity, you should set up the requirement date aligned with the activity start date and a negative offset of 5 days. The requirement date is the date on which a material component is required for an activity. The offset is a value that shifts the requirement date forward or backward from the activity start or finish date. A negative offset means that the requirement date is earlier than the activity date. Reference:https://help.sap.com/doc/0f069b2e08b748f1b480d4c8b46c3c49/100/en-US/6a7a9f0a6e421014e10000000a174cb4.html