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Issue in creating schedule lines via MRP in Multilevel subcontracting process.

Hi SAP Experts,
I have a unique requirement of multilevel subcontracting.
Process: Company wants vendor A to do subcontracting work and send semifinished assembly S1 to vendor B.
There are 3 entities involved in this. Company, Subcontracting Vendor A, Subcontracting Vendor B.
Company sends raw material (R1) to subcon vendor A via scheduling agreement (SA). SA is created with material S1. Semifinished material S1 is a BOM with component R1 assigned to it. SA has SC vendor checked under delivery address tab. Vendor B is maintained as subcontracting vendor under delivery address tab.

I have maintained source list with correct validity dates, SA with item, vendor fixed and MRP relevant = 2. I have also maintained purchase info record. The validity dates in SA is same as source list dates.

I created MRP area of type subcontracting. While creating the MRP area, i assigned Vendor A as subcontracting vendor. Material S1 is assigned with MRP area of type subcontracting.

My problem is, i am not able to generate schedule lines after running MRP. I ran MRP with MD02 with Parameters: NETCH, 1, 3, 1, 3 but system doesn't create any schedule lines.
Please help.
Thanks.
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3 Answers

  • Posted on Jun 14, 2020 at 12:11 AM

    Hello Sunil,

    1- I think you should also create a MRP Group for materials you wish to procure by means of scheduling agreement releases

    IMG Menu: Production -> Materials Requirements Planning -> MRP Groups -> Carry Out Overall Maintenance of MRP Groups (Transaction Code: OPPZ)

    Configure this MRP Group to work with Schedulling Agreement

    Assign this MRP Group, in the master records of the materials ordered via SA releases.

    2- in the Material Master Record for this material:

    MRP Tab:

    - planning procedure (PD)

    - Exact lot-size calculation (EX)

    - Assign MRP group (the one created above)

    - Procurement Type F (external procurement)

    Purchasing Tab:

    Choose the JIT Delivery Schedule indicator "1" if you want to work with JIT schedules. NOTE: If you create the SA before setting up the material for JIT, it will NOT work. FIRST the material has to be set up with JIT Indicator "1", AFTER that the SA has to be created. Weird behavior of SAP but that is how the system works.

    Hope it helps,

    Roberto.

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  • Posted on Jun 18, 2020 at 12:36 PM

    Hi Roberto,

    Thanks you for your reply.

    I did above mentioned steps but still system is not generating schedule lines.

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  • Posted on Aug 06, 2020 at 03:18 PM

    Do check below if it works for you :

    • Case of Third-party subcontracting scenario:
      See note 1967840 point 2: - If the flag "SC Vendor" is checked on the scheduling agreement, this source list entry will only be considered on a third-party order processing scenario with MRP areas. If you are not using MRP areas, this source list entry will not be considered and the vendor/schedule agreement will not be selected. This setting can be found on transaction ME32, on the menu path "ITEM" - "MORE FUNCTIONS" - "DELIVERY ADDRESS". See note 214298 for more details.
    • There is no such functionality in standard system to check for the availability in supplying plant, and if not procure from an External Vendor in case of STO MRP generation.

    https://wiki.scn.sap.com/wiki/display/ERPSCM/Source+Determination+within+ECC+system+in+Purchasing

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