The customer is into manufacturing and they do demand forecast (Entered directly in Item master). Master planning is running on a daily basis using batch job. System generated planned Production Orders, Planned Purchase orders and Transfer Orders (Based on refilling warehouse setup).
System gives different results when the plan is completed. Meaning, for some of the items, system is generating a planned production/purchase order despite of having sufficient stock. Please note that, there is min/max defined for certain items. But, it has the issue has not linked to the min/max items.
Surprisingly, when I run the master planning individually for those items (From Net Requirements), it gives the correct result. The same item gives the same wrong result, when the plan is generated the next day. Unable to make out where is it going wrong. Coverage plans and Master Plan setup seems to be correct. If it is wrong, it shouldn't have given a correct result when run individually. Your help is appreciated...
They are currently using R2 and upgrading to R3 (CU13) and this issue is occurring in both the versions...