How To Fix TW403 - DY-DB-ACCESS-ERROR: Internal error in the TW_COPY_DATA function

SAP Error Message - Details

• Message type: E = Error

• Message class: TW - R3trans - Messages

• Message number: 403

• Message text: DY-DB-ACCESS-ERROR: Internal error in the TW_COPY_DATA 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 TW403 - DY-DB-ACCESS-ERROR: Internal error in the TW_COPY_DATA function ?

  The SAP error message TW403 DY-DB-ACCESS-ERROR: Internal error in the TW_COPY_DATA function typically indicates that there is an issue with database access during a data transfer or copy operation in the SAP system. This error can arise from various underlying causes, including database inconsistencies, issues with the transport layer, or problems with the specific data being processed.
  Possible Causes:
  
  Database Locking Issues: The database might be locked by another process, preventing access to the required data.
  Data Inconsistencies: There may be inconsistencies in the data being copied or transferred, such as missing or corrupted records.
  Transport Layer Issues: Problems with the transport layer or transport requests can lead to errors during data copying.
  Authorization Issues: The user executing the operation may not have the necessary authorizations to access the data.
  System Resource Limitations: Insufficient memory or other system resources can lead to internal errors during data operations.
  Software Bugs: There may be bugs in the SAP software or specific patches that need to be applied.
  
  Solutions:
  
  Check Database Locks: Use transaction codes like SM12 to check for any locks on the database tables involved. If locks are found, they may need to be released.
  Review Data Consistency: Check the integrity of the data being copied. You can use transaction codes like SE11 or SE16 to inspect the relevant tables for inconsistencies.
  Transport Request Review: Ensure that the transport requests are correctly configured and that there are no issues with the transport layer. You can use transaction code STMS to manage transport requests.
  User Authorizations: Verify that the user has the necessary authorizations to perform the operation. You can check this in transaction SU53 or by reviewing the user's roles and profiles.
  System Resources: Monitor system resources using transaction ST02 or ST06 to ensure that there are no memory or performance issues affecting the operation.
  SAP Notes and Patches: Check the SAP Support Portal for any relevant SAP Notes that address this specific error. Applying the latest patches or updates may resolve the issue.
  Debugging: If you have access to debugging tools, you can analyze the TW_COPY_DATA function to identify the exact point of failure.
  
  Related Information:
  
  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 screenshots.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and potential solutions.
  Documentation: Review SAP documentation related to the specific module or function you are working with, as it may provide additional insights into the error.
  
  By following these steps, you should be able to diagnose and potentially resolve the TW403 error in your SAP system.