How To Fix MF323 - Error reading data. See log

SAP Error Message - Details

• Message type: E = Error

• Message class: MF - MPS planning and evaluation

• Message number: 323

• Message text: Error reading data. See log

How to fix this error?

Choose Goto --> Log to view the error log.
Limitations:
The log cannot be displayed for system-wide evaluations using ALE or
communication with a partner system; Only an incomplete list of systems
not reached is displayed.
If authorization does not exist for another plant in the error log,
only the data from those plants is displayed for which you have
authorization.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MF323 - Error reading data. See log ?

  The SAP error message MF323 ("Error reading data. See log") typically occurs in the context of Material Management (MM) or Production Planning (PP) modules when the system encounters an issue while trying to read data related to material movements, inventory management, or production orders. This error can arise due to various reasons, including data inconsistencies, configuration issues, or problems with the underlying database.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies in the data stored in the database, such as missing or corrupted records.
  Authorization Issues: The user may not have the necessary authorizations to access the required data.
  Configuration Errors: Incorrect configuration settings in the system can lead to issues when trying to read data.
  Database Issues: Problems with the database, such as locks or corruption, can prevent data from being read correctly.
  Program Errors: Bugs or errors in the custom code or standard SAP programs can lead to this error.
  
  Solutions:
  
  Check the Log: The error message suggests checking the log for more detailed information. Use transaction codes like SLG1 (Application Log) to view logs related to the error.
  Data Consistency Check: Run consistency checks for the relevant data. For example, you can use transaction codes like MB5B or MB52 to check for inventory inconsistencies.
  Authorization Check: Ensure that the user has the necessary authorizations to access the data. You can check this using transaction SU53 to see if there are any authorization failures.
  Review Configuration: Verify the configuration settings related to the specific module (MM/PP) to ensure they are set up correctly.
  Database Check: If you suspect database issues, consult with your database administrator to check for locks, performance issues, or corruption.
  Debugging: If the issue persists, consider debugging the program that is generating the error to identify the root cause.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A, MB1B, and MB1C for material movements, and ME21N for purchase orders.
  SAP Support: If the issue cannot be resolved internally, consider reaching out to SAP Support for assistance.
  Documentation: Review SAP documentation and community forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to diagnose and resolve the MF323 error in your SAP system.