How To Fix V1426 - The schedule line quantity is already: &1 &2


SAP Error Message - Details

  • Message type: E = Error

  • Message class: V1 - Verkaufsbelegbearbeitung

  • Message number: 426

  • Message text: The schedule line quantity is already: &1 &2

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  • What causes this issue?

    You have reduced the target quantity, although schedule lines for the
    material already exist.

    System Response

    The system does not adjust the schedule lines already existing. The
    cumulative order quantity of the existing schedule lines remains &V1&
    &V2&.

    Error message extract from SAP system. Copyright SAP SE.


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