How To Fix PG428 - A complex application error has occurred

SAP Error Message - Details

• Message type: E = Error

• Message class: PG - Error Messages for Master Data Programs

• Message number: 428

• Message text: A complex application error has occurred

What causes this issue?

You have attempted to enter data in the system using a BAPI. The system
has discovered that this data is not consistent. Unfortunately, the
exact cause of this inconsistency cannot be determined when BAPIs are
used.

System Response

The system has rejected the data.

How to fix this error?

Please use a dialog transaction to enter the data in the system. You
may then be able to determine the exact cause of the error.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PG428 - A complex application error has occurred ?

  The SAP error message PG428, which states "A complex application error has occurred," is a generic error message that can arise from various underlying issues within the SAP system. This error typically indicates that there is a problem with the application logic or data processing in the SAP environment. Here are some potential causes, solutions, and related information:
  Causes:
  
  Data Inconsistencies: There may be inconsistencies or corruption in the data being processed, which can lead to unexpected behavior.
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to application errors.
  Custom Code: If there are custom developments (ABAP programs, enhancements, etc.), bugs or issues in the code can trigger this error.
  System Performance: Performance issues, such as timeouts or resource limitations, can cause complex application errors.
  Authorization Issues: Lack of proper authorizations for the user executing the transaction can lead to errors.
  Integration Problems: Issues with integration points, such as interfaces with other systems, can also lead to this error.
  
  Solutions:
  
  Check Logs: Review the application logs (transaction SLG1) and system logs (transaction SM21) for more detailed error messages that can provide insights into the root cause.
  Debugging: If you have access to the ABAP debugger, you can analyze the program flow to identify where the error occurs.
  Data Validation: Ensure that the data being processed is valid and consistent. Check for missing or incorrect entries.
  Review Custom Code: If custom developments are involved, review the code for potential bugs or issues. Consider reaching out to the developer for assistance.
  Configuration Review: Verify that the configuration settings are correct and align with the business processes.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the action that triggered the error.
  Performance Monitoring: Monitor system performance and resource usage to identify any bottlenecks or issues that may be causing the error.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  System Updates: Ensure that your SAP system is up to date with the latest patches and updates, as these can resolve known issues.
  
  If the error persists after trying the above solutions, it may be necessary to escalate the issue to SAP support for further investigation.