How To Fix TW406 - DY-DB-ACCESS-ERROR: Internal error in the TW_INIT_TABLE_LENGTH function

SAP Error Message - Details

• Message type: E = Error

• Message class: TW - R3trans - Messages

• Message number: 406

• Message text: DY-DB-ACCESS-ERROR: Internal error in the TW_INIT_TABLE_LENGTH function

What causes this issue?

An internal error occurred in the specified function in the library
twdbacc.

System Response

The action was terminated.

How to fix this error?

Inform SAP of this error, and the actions that led to it.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TW406 - DY-DB-ACCESS-ERROR: Internal error in the TW_INIT_TABLE_LENGTH function ?

  The SAP error message TW406 DY-DB-ACCESS-ERROR: Internal error in the TW_INIT_TABLE_LENGTH function typically indicates an issue related to database access or internal processing within the SAP system. This error can arise due to various reasons, including database inconsistencies, issues with the application server, or problems with the specific transaction or function module being executed.
  Possible Causes:
  
  Database Issues: There may be inconsistencies or corruption in the database tables that the function is trying to access.
  Authorization Problems: The user executing the transaction may not have the necessary authorizations to access certain database objects.
  System Configuration: Incorrect configuration settings in the SAP system or database can lead to access errors.
  Memory Issues: Insufficient memory allocation for the SAP application server can cause internal errors.
  Software Bugs: There may be bugs in the SAP software or specific patches that need to be applied.
  
  Solutions:
  
  
  Check Database Consistency:
  
  Use transaction codes like DB02 or DBACOCKPIT to check for database inconsistencies.
  Run database consistency checks and repair any issues found.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to access the required database tables and functions.
  Use transaction SU53 to analyze authorization failures.
  
  
  
  Check System Logs:
  
  Review the system logs (transaction SM21) and developer traces (transaction ST22) for more detailed error messages that can provide insights into the issue.
  
  
  
  Adjust Memory Settings:
  
  Check the memory settings for the SAP application server and adjust them if necessary. This can be done in the instance profile settings.
  
  
  
  Apply SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error. Applying the latest patches or updates can resolve known issues.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any logs or traces.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM21 (System Log), ST22 (Dump Analysis), SU53 (Authorization Check), and DB02 (Database Performance).
  SAP Notes: Regularly check for SAP Notes related to database access errors and internal function errors.
  Documentation: Review SAP documentation for the specific module or function you are working with to understand any prerequisites or configurations that may be required.
  
  By following these steps, you should be able to diagnose and potentially resolve the TW406 error in your SAP environment.