How To Fix SN420 - Enter a runtime error

SAP Error Message - Details

• Message type: E = Error

• Message class: SN - ABAP/4 dump analysis messages

• Message number: 420

• Message text: Enter a runtime error

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 SN420 - Enter a runtime error ?

  The SAP error message SN420, which states "Enter a runtime error," typically indicates that there is an issue with the execution of a program or transaction in the SAP system. This error can occur due to various reasons, including coding errors, configuration issues, or problems with the underlying data.
  Causes:
  
  Coding Errors: There may be bugs or unhandled exceptions in the ABAP code that lead to runtime errors.
  Data Issues: Inconsistent or corrupt data in the database can trigger runtime errors when the program tries to process it.
  Configuration Problems: Incorrect configuration settings in the system can lead to unexpected behavior during program execution.
  System Resource Limitations: Insufficient memory or other system resources can cause runtime errors.
  Transport Issues: If a transport request was not properly imported, it could lead to inconsistencies in the system.
  
  Solutions:
  
  Check the Dump Analysis: Use transaction code ST22 to analyze the short dump generated by the runtime error. This will provide detailed information about the error, including the program name, line number, and the nature of the error.
  Debugging: If you have access to the ABAP code, you can debug the program to identify the exact point of failure. Use transaction SE80 or SE38 to access the program and set breakpoints.
  Data Validation: Check the data being processed by the program. Ensure that it is consistent and meets the expected format and constraints.
  Review Configuration: Verify that all relevant configuration settings are correct and consistent with the requirements of the program.
  System Resources: Monitor system resources using transaction ST03 or ST06 to ensure that the system is not running low on memory or other resources.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to the error message SN420.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: 
  
  ST22: For analyzing short dumps.
  SE80: For accessing the Object Navigator.
  SE38: For executing ABAP programs.
  SM21: For checking system logs.
  
  
  SAP Notes: Always check for SAP Notes related to runtime errors, as they may provide specific fixes or workarounds.
  Documentation: Review the documentation for the specific program or transaction that is causing the error for any known issues or prerequisites.
  
  By following these steps, you should be able to diagnose and resolve the SN420 runtime error in your SAP system.