How To Fix DLALR120 - Requirement & contains a negative quantity

SAP Error Message - Details

• Message type: E = Error

• Message class: DLALR - Data link to central systems

• Message number: 120

• Message text: Requirement & contains a negative quantity

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DLALR120 - Requirement & contains a negative quantity ?

  The SAP error message DLALR120, which states "Requirement & contains a negative quantity," typically occurs in the context of material requirements planning (MRP) or production planning. This error indicates that there is a requirement for a material that has a negative quantity, which is not valid in the context of inventory management and planning.
  Causes:
  
  Incorrect Data Entry: A negative quantity may have been entered manually in the system, either in the bill of materials (BOM), production order, or sales order.
  Configuration Issues: There may be issues with the configuration of the MRP settings or the way the material master data is set up.
  Incorrect Planning Parameters: The planning parameters for the material may not be set correctly, leading to negative requirements being calculated.
  Stock Adjustments: Adjustments made to stock levels (e.g., returns, scrapping) may have inadvertently resulted in negative requirements.
  BOM or Routing Issues: Errors in the BOM or routing definitions can lead to incorrect calculations of requirements.
  
  Solutions:
  
  Check Requirement Source: Identify where the negative requirement is coming from. This could be from sales orders, production orders, or planned orders. Use transaction codes like MD04 (Stock/Requirements List) to analyze the source.
  Correct Data Entry: If the negative quantity was entered manually, correct it to a valid positive quantity or zero, as appropriate.
  Review BOM and Routing: Ensure that the BOM and routing for the material are correctly defined and do not contain any errors that could lead to negative requirements.
  Adjust Planning Parameters: Review and adjust the planning parameters for the material in the material master (transaction MM02) to ensure they are set correctly.
  Run MRP Again: After making corrections, run the MRP process again to recalculate the requirements and ensure that the negative quantity is resolved.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling negative quantities in your version of SAP.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD04 (Stock/Requirements List), MD01 (MRP Run), and MM02 (Change Material).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Engage with SAP community forums or user groups for additional insights and solutions from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the cause of the DLALR120 error and implement a solution to resolve it.