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MRP logic while considering existing firm receipts(Purchase Order)

Hi,

I would like to know how MRP or in MD04, firm receipts are considered.

Following are the results which i have seen in MD04 when i change procurement proposals.

1. Scenario A:

Date MRP element MRP element data Rescheule Rec/Req Available qty

20.04.2009 DepReq MRPTESTSFG 100- 100-

20.05.2009 PurRqs 0010018322/00010 100 0

20.05.2009 DepReq MRPTESTSFG 150- 150-

19.06.2009 PurRqs 0010018323/00010 150 0

19.06.2009 DepReq MRPTESTSFG 150- 150-

14.08.2009 POitem 4500000086/00010 20.04.2009 150 0

2. Scenario B:

Date MRP element MRP element data Rescheule Rec/Req Available qty

10.04.2009 Stock 0 0

20.04.2009 DepReq MRPTESTSFG 100- 100-

20.05.2009 PurRqs 0010018322/00010 20.04.2009 100 0

20.05.2009 DepReq MRPTESTSFG 150- 150-

19.06.2009 PurRqs 0010018323/00010 20.05.2009 150 0

19.06.2009 DepReq MRPTESTSFG 150- 150-

18.08.2009 POitem 4500000086/00010 150 0

In scenario A, it proposes PO xxx86 to reschedule to 20.04.2009 inorder to meet the dependent req on 20.04.09.

I want know how this happens automatically?

(1. Considering existing firm receipt(PO) for dependent req. of some other time bucket. Here I understand system's concepts, i want to know where is this setting?)

In scenario B, the same PO which has a delivery date of 18.08.2009, was not proposed for 20.04.2009 dependent req.

Former Member
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