How To Fix SIG400 - *************************************************************************

SAP Error Message - Details

• Message type: E = Error

• Message class: SIG - Digital Signature

• Message number: 400

• Message text: *************************************************************************

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 SIG400 - ************************************************************************* ?

  The SAP error message SIG400 is a generic error message that indicates a "system error" or "internal error" in the SAP system. This error can occur in various contexts and may be related to different issues, such as configuration problems, data inconsistencies, or system performance issues.
  Possible Causes:
  
  Configuration Issues: Incorrect settings in the system configuration can lead to this error.
  Data Inconsistencies: Corrupted or inconsistent data in the database can trigger this error.
  Performance Issues: System performance problems, such as memory shortages or database locks, can cause internal errors.
  Custom Code: If there are custom developments or enhancements, they may not be functioning correctly.
  Transport Issues: Problems during the transport of objects between systems can lead to this error.
  
  Solutions:
  
  Check System Logs: Review the system logs (transaction SM21) for more detailed error messages that can provide insights into the cause of the SIG400 error.
  Analyze Short Dumps: Use transaction ST22 to check for short dumps that may have occurred around the same time as the error. This can help identify the specific issue.
  Review Configuration: Verify the configuration settings related to the transaction or process that triggered the error.
  Data Consistency Checks: Run consistency checks on the relevant data to identify and correct any inconsistencies.
  Performance Monitoring: Monitor system performance using transaction ST03N to identify any bottlenecks or resource shortages.
  Debugging: If the error is related to custom code, use the ABAP debugger to trace the execution and identify the root cause.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address the SIG400 error or provide patches or updates.
  Contact SAP Support: If the issue persists and cannot be resolved internally, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), and ST03N (Workload Analysis) for troubleshooting.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and to share solutions.
  Documentation: Review SAP documentation for best practices in system configuration and performance tuning.
  
  Since SIG400 is a generic error, the specific resolution may vary based on the context in which it occurs. Always ensure that you have proper backups and follow best practices when making changes to the system.