change validation rule of materials

Question:
How can I change validation rules of several materials?
I searched in the mm02-Transaction but I found nothing.
Can somebody help me?
Greetings
Daniel
Answer:
Hi Daniel
What means valuation rule, explain a bit more, because in SAP you have more valuation rules. Valuation rules for FI, valuaton rules for QM. You will find more then 1000 hits about valuaton rule in SAP.
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MFG: michael
Answer:
Es geht um die Prüfregel, die bei der Produktion angelegt wird. es gibt im customizing eine Prüfregel-Liste, da ist eine Funktion mit SD-Aufträgen mit der Einstellung A und AE Einige Materialien haben den Wert A die anderen den Wert AE. Die mit AE funktionieren, die mit A leider nicht.
MfG Daniel
Answer:
Hi Daniel
I guess you speak about the material availability check, this is a part of the "Production Planning for Process Industries" here you can define and check the availabity checking rules, check in customizing the settings, rules and maybe you should check the the availability definition in you material master.
Please use for further discussions English because this is a world wide forum and you get maybe from other guys a better information.
_________________
MFG: michael

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