SAP可用性检查01和02的区别

今天有个订单库存充足、信用也释放了，但VA02进去计划行里的确认数量是0，排查了下发现出问题的这个行项目物料主数据中的“销售：一般/工厂”视图中的“可用性检查”字段维护的是“01日需求”，而MARC显示绝大部分的物料维护的都是“02个别需求”。

根据大概率法则，可以基本判定是物料主数据问题，Google了一下SAP系统可用性检查规则中的01和02的区别，还真是这个原因。

Q：

What is the difference between the Avaialbility check 01 (Daily requirement) and 02 (Individual Requirement) in material master?

A：

Daily requirement（01） means th system will carry out availibilty check for the orders created at the end of the day and confirm the quantities.

Individual requirement（02） means for each sales order you create, system will carry out Availibility check and proposal of quantities will happen accordingly.

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01 and 02 are the checking group. Availability check is carried out with the help of these checking group and checking rule. Checking group 01 and 02 are maintained on the material master.

01 – Individual requirement -For this system generates transfers the requirement for each order to the MRP .So that MM can either produce or procure.

02- Collective requirement.-In this all the requirements in aday or in a wek are processed at a time. System stores all req and passes on to the MRP in MRP run.In this system performance is high however you can not do the backorder processing whereas in other you can do