How To Fix MN684 - The business volume data from the user exit is inconsistent

SAP Error Message - Details

• Message type: E = Error

• Message class: MN - Message class for subsequent settlement (Purchasing)

• Message number: 684

• Message text: The business volume data from the user exit is inconsistent

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MN684 - The business volume data from the user exit is inconsistent ?

  The SAP error message MN684, which states "The business volume data from the user exit is inconsistent," typically occurs in the context of the SAP system's handling of business volume data, particularly in the area of logistics or sales and distribution. This error indicates that there is a mismatch or inconsistency in the data being processed, often due to custom user exits or enhancements that have been implemented.
  Causes:
  
  Inconsistent Data: The data being passed from the user exit may not match the expected format or values. This could be due to incorrect calculations, missing data, or data that does not conform to the expected business logic.
  Custom Code Issues: If there are custom enhancements or user exits implemented, there may be bugs or logical errors in the code that lead to inconsistent data being generated.
  Configuration Issues: Incorrect configuration settings in the relevant modules (like Sales and Distribution, Material Management, etc.) can lead to inconsistencies in the data.
  Data Integrity Issues: Problems with master data or transactional data integrity can also lead to this error, such as missing or incorrect entries in related tables.
  
  Solutions:
  
  Review User Exits: Check the custom code in the user exits that are involved in the business volume data processing. Look for any logical errors or inconsistencies in the calculations or data handling.
  Debugging: Use the SAP debugger to trace the execution of the user exit and identify where the inconsistency arises. This can help pinpoint the exact location in the code that is causing the issue.
  Data Validation: Ensure that the data being processed is valid and complete. This may involve checking master data, transactional data, and any related configurations.
  Check Configuration: Review the configuration settings in the relevant modules to ensure they are set up correctly and align with the business processes.
  Consult Documentation: Refer to SAP documentation or notes related to the specific user exit or business process to see if there are known issues or additional guidance.
  Testing: After making changes, conduct thorough testing to ensure that the issue is resolved and that no new issues have been introduced.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message MN684. SAP frequently releases updates and fixes for known problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting, such as SE80 (Object Navigator), SE37 (Function Module), or SE38 (ABAP Program).
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.