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Difference bewteen material staging & backflush


Can I know the difference between material staging & backflush? Can I have one production order with some materials as pick items and some as backflush?

When do we use these two for a BOM in a production order?



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    author's profile photo Former Member
    Former Member
    Posted on Jul 18, 2008 at 04:29 AM


    Material staging-

    The Process of executing the Pull list and getting the material is known as Material staging.

    Pull list is used to withdraw the components from Main storage location to the issue storage location. Issue storage location is Prod. storage location.Pull list used to control the flow of components required for in-house manufacturing.

    It is assumed that the components required are already ( procured or produced ) made available in the Main storage location and to be transferred now to production storage location.

    Pull list takes into account the dependent requirements generated from the planned orders of the parent parts and stocks of the child component is checked at the production storage location.Pull list calculates the quantities of the missing parts.

    There are four replenishment strategies can used for staging components in the pull list:

    Direct stock transfer

    Stock transfer reservation

    Creating KANBAN replenishment elements (event-driven KANBAN)

    Creating WM transfer requirements or transfer orders.

    Now backflushing -

    In Repetitive Manufacturing, the production process is simplified;Backflushing is production booking in REM. The following backflushing functions occur when executing a final backflush in the standard system.

    1) Goods receipt of the assembly or finished product in the receiving storage location. This is maintained in MRP2 view in Production storage location.

    2) Back flushing the components from the issue storage location.

    3) Posting the material costs to the product cost collector.

    4) Posting the production activities to the product cost collector.

    5) Adjust the production schedule (reduce the production quantities and capacity requirements).

    Staging will happen before backflushing.

    In staging you bring the child material either by stock transfer or stock reservation.

    In backflushing, you use these child materials to make the assembly i.e. production booking.

    Hope it is clear.


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    • Former Member Former Member

      Hello Shan,

      if backflushing is not used, this usually means that Good Issues are done using MM (MIGO transaction), no automatic process is performed, the user enters Production Order number and the system gets all components meant to be issued. The user selects the ones to be issued then saves the movement (261 movement type).

      Hope this helps you



  • Posted on Jul 17, 2008 at 03:08 PM


    Are you using Warehouse Management??



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  • Posted on Jul 17, 2008 at 04:42 PM


    In warehouse management you can usde material staging to move the goods (pick parts) from your storage bins to production area (to fix or to dynamic bins).

    In this case (e,g,) the release of PrdOrd will trigger the creation of a TR and processing this TR you create a TO. Via this TO goods movement within your WH took place (not in IM). Goods will get from "normal storage bins" to production area (in WM!).

    When you do confirmation, your goods (components) will be consumed via IM-mvt (no WM-mvt happens!).

    You can do GI first in IM and this will trigger the creation of a TR in WM and quant with negative qty will appear in interim storage type 914. Processing the TR (via the TO) the goods will get to storage type 914 and +quants and -quants will result in 0.

    Please notice the difference, that in the first case the WM processes were triggered w/o IM material movements!!!



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