PR generated for materials although there is no demand.

[Former Member]

Hi,

I have a situation where the system's MRP run is generating PRs for few materials although we have open PO with quantity equal to the requirement for that particular material.

What can be the reason behind such system behavior.

[Former Member]

Hi All,

A sales order is entered in the MRP whose dependent requirements have different account assignment because of which system isnt considering the stock brought in by the already created PO.

But the question is why is it happening only for few materials and not for all the materials involved.

Please suggest.

Thanks

[kiran_kumar179]

Becuase they might have MRP group for which Rescheduling horizon is below the PO date.

If you could share your MD04 snap shot then someone could help you.

Br

KK

[Former Member]

[Former Member]

Your PO cannot cover your dependent requirement as it is not assigned to the customer order.

2 options:

1st your PO has to be assigned to the customer order

2nd you have to change Individual/coll. indicator in  MRP4 view to  2 Collective requirements only and re-run MRP

[Former Member]

what do you mean by, PO is not assigned to the customer order? and how is the assignment done ?

[kiran_kumar179]

Ruby,

If your header material planning strategy is 20 MTO then unless you have specific customer assigned receipts system would not consider them during planning.

Check the component for which you are checking PO in MRP4 view what is Individual/Collective indicator has been set if it is Blank or 1 then you would face this issues.

If you want to have all sub assemblies below you header as MTS then for all those material set above indicator to 2 Collective Requirements and Then run MRP again with Planning mode 3.

Br

KK

[Former Member]

Maybe your PO is outside the rescheduling horizon in maintained in OPPQ

What is rescheduling and how does it work - ERP Manufacturing (PP) - SCN Wiki

[Former Member]

How to check if the PO is outside rescheduling horizon?

[Former Member]

if you PO date is 01.01.2015 and your rescheduling horizon is 50 days your PO is outside the horizon 😉 and system will create a new PR

What is rescheduling and how does it work - ERP Manufacturing (PP) - SCN Wiki

You can also have a look onto the corresponding SAP note http://service.sap.com/sap/support/notes/25388

[kiran_kumar179]

Ruby,

Did you see any exception message 20 Cancel Process against those POs then your POs are outside reschedule horizon as said by Ulrich this is standard design of the system.

To avoid this situation you need to extend the rescheduling horizon based on your requirement.

Br

KK

[BijayKumarBarik]

Hi,

Which MRP Type you are using in your material master and also refer detailed MRP settings  in your material master.

Regards,

Biju K

[Former Member]

MRP type is PD. Lot size is EX lot-for-lot quantity order.