SAP MM MB21创建预留单据报错- Error during conversion to alternative units of measure -
某日下午收到业务部门报错，说是创建预留单保存报错，
详细错误信息如下：
Error during conversion to alternative units of measure
Message no. XU001
Diagnosis
An error occurred during conversion of the quantity stored to
alternative units of measure or vice versa:
o the quantity stored could not be converted to an alternative unit of
measure to the correct decimal place
o or another conversion error occurred due to unsuitable transfer
parameters when the calling up the quantity conversion
System Response
The item cannot be entered
Procedure
o Check the batch classification
o Check the settings for the use of proportional/product units.
经查，该物料有启用批次双计量单位，除了基本计量单位PC，还有批次特定计量单位W/P (瓦/PC)。而批次特性里没有维护正确的批次特性值，
这样系统在202移动类型预留单据创建的时候，需要去换算将要收进来的120 PC该物料折合成多少功率，因为该特性值没有维护好，所以导致报错。
所以方案就是用MSC2N修改这个批次，维护好功率特性值，然后去创建预留。
