How To Fix /SAPAPO/TDL_DAO081 - Negative quantity &1 is not allowed, set quantity to null for &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/TDL_DAO -

• Message number: 081

• Message text: Negative quantity &1 is not allowed, set quantity to null for &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/TDL_DAO081 - Negative quantity &1 is not allowed, set quantity to null for &2 ?

  The SAP error message /SAPAPO/TDL_DAO081 indicates that a negative quantity is being processed in a context where it is not allowed. This error typically occurs in the Advanced Planning and Optimization (APO) module of SAP, particularly when dealing with transportation or demand planning.
  Cause:
  
  Negative Quantity Input: The most common cause of this error is that a negative quantity has been entered in a transaction or during data processing. This could happen due to incorrect data entry, data migration issues, or logic errors in custom programs or user exits.
  Data Consistency Issues: There may be inconsistencies in the data that lead to negative quantities being calculated or derived from other values.
  Configuration Issues: Certain settings in the APO configuration may not allow for negative quantities, leading to this error when such quantities are encountered.
  
  Solution:
  
  Check Input Data: Review the input data for the transaction that triggered the error. Ensure that all quantities are positive and that there are no negative values being passed.
  Data Validation: Implement data validation checks in your processes to prevent negative quantities from being entered or processed.
  Review Custom Code: If there are any custom programs or enhancements, review the logic to ensure that negative quantities are not being generated inadvertently.
  Configuration Review: Check the configuration settings in APO to ensure that they align with business requirements and do not inadvertently restrict valid data.
  Debugging: If the issue persists, consider debugging the process to identify where the negative quantity is being introduced. This may involve looking at the call stack or reviewing logs for additional context.
  Consult Documentation: Refer to SAP documentation or notes related to this error message for any specific guidance or patches that may address the issue.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error message.
  Transaction Codes: Familiarize yourself with relevant transaction codes in APO that may be involved in the process where the error occurs (e.g., /SAPAPO/TDL for transportation load planning).
  Community Forums: Engage with SAP community forums or support channels to see if other users have encountered similar issues and what solutions they have found.
  
  By addressing the root cause of the negative quantity and ensuring proper data handling, you should be able to resolve the error and prevent it from occurring in the future.