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Posted by evanChen on 2008-06-14 05:15 下午
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If you create a material with Create ?Schedule, the system first creates a document (and no material master record). If you schedule the material with reference to a change number, the system takes the valid-from date from the change master record. The Valid-from date must be in the future.
The system does not create the material master record until the scheduled material is activated on the valid-from date of the change master record. The current date is set as the create date. You can then process this "real" material master record either with or without a change number.
If you schedule to create a material with reference to several change numbers, the system overwrites the existing organizational areas when it is activated.
As an example, you schedule a material with reference to the change number N1 and maintain data for engineering design and materials planning.
You then schedule the same material with reference to the change number N2 and maintain data for engineering design and storage.
You activate the material for the valid-from date of change number N1. If you activate the material for the valid-from date of change number N2, the engineering design data is overwritten. Only the state with reference to change number N2 is saved
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