How To Fix PMRP031 - Quantity for top-level demand &1 must not be negative

PMRP031 - Overview

• Message type: E = Error

• Message class: PMRP - Messages for pMRP

• Message number: 031

• Message text: Quantity for top-level demand &1 must not be negative

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PMRP031 - Quantity for top-level demand &1 must not be negative ?

  The SAP error message PMRP031 indicates that there is an issue with the quantity for a top-level demand in the planning process. Specifically, it states that the quantity must not be negative. This error typically arises in the context of Material Requirements Planning (MRP) when the system is trying to process demand for materials, and it encounters a negative quantity for a top-level demand.
  
  Cause:
  
  Incorrect Data Entry: A negative quantity may have been entered inadvertently in the demand planning or master data.
  Planning Parameters: The planning parameters or settings may be incorrectly configured, leading to negative demand calculations.
  Demand Management Issues: There may be issues with the demand management process, such as incorrect forecasts or sales orders that have been adjusted improperly.
  Master Data Issues: Problems with the material master data, such as incorrect settings for the material type or planning strategy, can lead to this error.
  
  
  Solution:
  
  Check Demand Entries: Review the demand entries for