How To Fix M2686 - Internal error occured when checking entries or possible entries field

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 686

• Message text: Internal error occured when checking entries or possible entries field

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 M2686 - Internal error occured when checking entries or possible entries field ?

  The SAP error message M2686, which states "Internal error occurred when checking entries or possible entries field," typically indicates that there is an issue with the data being processed in the Material Management (MM) module, particularly related to material master data or transaction data.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the material master data or related tables that the system is trying to validate.
  Custom Code Issues: If there are custom enhancements or user exits that manipulate data during the entry process, they may be causing the error.
  Configuration Issues: Incorrect configuration settings in the material management module can lead to this error.
  Database Issues: Problems with the underlying database, such as corruption or connectivity issues, can also trigger this error.
  Missing Authorizations: Sometimes, the user may not have the necessary authorizations to access certain data, leading to this error.
  
  Solutions:
  
  Check Data Consistency: Use transaction codes like MM02 to check the material master data for inconsistencies. Ensure that all required fields are filled correctly.
  Review Custom Code: If there are any custom enhancements or modifications, review the code to ensure it is functioning as expected and not causing the error.
  Configuration Review: Check the configuration settings in the MM module to ensure they are set up correctly. This includes checking the material types, valuation classes, and other related settings.
  Database Check: If you suspect a database issue, work with your database administrator to check for any corruption or connectivity issues.
  User Authorizations: Verify that the user has the necessary authorizations to perform the action that triggered the error. Use transaction SU53 to analyze authorization issues.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  Debugging: If the issue persists, consider debugging the transaction to identify the exact point of failure. This may require assistance from a developer or SAP Basis team.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM01, MM02, MM03, and MMBE for material management tasks.
  SAP Support: If the issue cannot be resolved internally, consider reaching out to SAP Support for further assistance.
  Documentation: Review SAP documentation related to material management and error handling for additional insights.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the M2686 error in SAP.