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Microsoft Dynamics AX (Archived)

BOM/Inventory

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Using the flushing principle under BOM->Setup->Flushing Principle, would I be able to have a material go through a complete production order without getting deducted from inventory?

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  • Guy Terry Profile Picture
    28,860 Moderator on at
    RE: BOM/Inventory

    If you set a quantity of zero on the BOM Line, and tick 'Complete picking list journal' when you Start the production order, I think the item will appear on the picking list, but will post no consumption (by default).

  • Community Member Profile Picture
    on at
    RE: BOM/Inventory

    Yes it is a tool. For example it would be an attachment to a mill or lathe. There would be no cost postings either.

  • André Arnaud de Calavon Profile Picture
    297,410 Super User 2025 Season 2 on at
    RE: BOM/Inventory

    HI Blake,

    Is this material a kind of tool? Please elaborate, so we can suggest the best approach. Possibly using a service item or maybe use a resource. Are any cost postings related to this material line?

  • Community Member Profile Picture
    on at
    RE: BOM/Inventory

    I'm using a material in a production order that will not be consumed. If I use the manual flushing principle, would I be able to enter the consumption as zero? Then it wouldn't be consumed.

  • André Arnaud de Calavon Profile Picture
    297,410 Super User 2025 Season 2 on at
    RE: BOM/Inventory

    Hi Blake,

    No. Flushing principle is intended to tell AX to automatically consume the material or have it manually updated. What is the reason for your question? Possibly you need to create a service/non stocked item?

  • Verified answer
    guk1964 Profile Picture
    10,886 on at
    RE: BOM/Inventory

    That's up to you and the flushing principle you adopt.

    See https://dyntips.com/2016/02/01/flushing-principles/for some insights.

    There are three stages for Automatic BoM Consumption in Production

    1. At Start of a production order.
    2. Upon completion of an operation.
    3. Upon report as finished of a production order.

    The flushing principle used is based on:

    • The parameters set in Production,
    •  And/or the flushing principle associated with the item.

    Production Execution Parameters (Production control > Setup > Manufacturing execution > Production parameters)

    The flushing principle selected on Start parameters must also be selected on either the operations tab, OR the report as finished tab. 

    When the  flushing principle on a BoM line of a production order is blank, then principle defined on the item will dictate the BoM consumption.

    Note also that on  Production > Setup > Production control parameters you can set default BoM consumption / flushing principles either for the execution of a production order,  or for report as finished.

    This is an older tech net reference https://technet.microsoft.com/en-us/library/aa570152.aspx

    If you are using WMS then read Tim's post https://timsaxblog.wordpress.com/2015/07/31/production-order-back-flush-using-warehouse-management-in-ax-2012-r3/

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