How To Fix 34N400 - Internal error: "&1" "&2" "&3" "&4"

SAP Error Message - Details

• Message type: E = Error

• Message class: 34N - Messages for AP Configuration Engine

• Message number: 400

• Message text: Internal error: "&1" "&2" "&3" "&4"

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 34N400 - Internal error: "&1" "&2" "&3" "&4" ?

  The SAP error message "34N400 Internal error: "&1" "&2" "&3" "&4"" typically indicates an internal issue within the SAP system. This error can arise from various underlying causes, such as:
  Causes:
  
  Data Inconsistencies: There may be inconsistencies in the data being processed, which can lead to unexpected behavior.
  Configuration Issues: Incorrect configuration settings in the system can trigger internal errors.
  Program Errors: Bugs or issues in custom ABAP programs or standard SAP programs can lead to this error.
  System Resource Limitations: Insufficient memory or other system resources can cause internal errors.
  Database Issues: Problems with the database, such as locks or corruption, can also lead to internal errors.
  
  Solutions:
  
  Check SAP Notes: Look for relevant SAP Notes in the SAP Support Portal that may address this specific error. SAP frequently releases patches and updates that can resolve known issues.
  Analyze the Dump: Use transaction code ST22 to analyze the short dump associated with the error. This can provide more context about what caused the internal error.
  Review System Logs: Check the system logs (transaction code SM21) for any related messages that might give more insight into the issue.
  Debugging: If you have access to the ABAP code, you can debug the program to identify where the error is occurring.
  Check Configuration: Review the configuration settings related to the transaction or process that triggered the error to ensure they are correct.
  Contact SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like ST22 (Dump Analysis), SM21 (System Log), and SE80 (Object Navigator) for debugging and analysis.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Documentation: Review SAP documentation related to the specific module or functionality you are working with, as it may contain troubleshooting steps for common errors.
  
  Always ensure that you have proper backups and follow your organization's change management procedures when making changes to the system.