How To Fix GT051 - Convert & & by unloading and reloading the data

SAP Error Message - Details

• Message type: E = Error

• Message class: GT - Database utilities

• Message number: 051

• Message text: Convert & & by unloading and reloading the data

What causes this issue?

Conversion is carried out by unloading the data into a temporary table,
deleting the original table, creating and activating the table with its
new structure and loading the data back into the newly created table.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

These steps are recorded in the log.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GT051 - Convert & & by unloading and reloading the data ?

  The SAP error message GT051 typically indicates an issue related to data conversion or data inconsistency in the context of data transfer or data loading processes, particularly in the context of SAP BW (Business Warehouse) or SAP HANA. The message suggests that there is a problem with the data that needs to be addressed by unloading and reloading the data.
  Cause:
  
  Data Type Mismatch: The error may occur if there is a mismatch in data types between the source and target systems or between different fields in the data model.
  Corrupted Data: There may be corrupted or invalid data in the source that cannot be processed correctly.
  Inconsistent Data: The data being loaded may not conform to the expected format or structure, leading to conversion issues.
  Configuration Issues: Incorrect settings in the data transfer process or in the data model can also lead to this error.
  
  Solution:
  
  
  Unload and Reload Data: As suggested by the error message, you should unload the affected data and then reload it. This can often resolve issues related to temporary inconsistencies or corrupted data.
  
  Steps to Unload and Reload:
  
  Identify the data that is causing the issue.
  Use the appropriate transaction or tool in SAP to unload the data (e.g., using the Data Warehousing Workbench).
  After unloading, check the data for any inconsistencies or errors.
  Reload the data from the source system.
  
  
  
  
  
  Check Data Types: Ensure that the data types in the source and target systems match. If there are discrepancies, you may need to adjust the data types in the data model or transformation rules.
  
  
  Data Validation: Before reloading, validate the data in the source system to ensure that it is clean and conforms to the expected formats.
  
  
  Review Transformation Rules: If you are using transformation rules to convert data during the loading process, review these rules to ensure they are correctly defined.
  
  
  Consult Logs: Check the logs for more detailed error messages that can provide insights into what specifically is causing the conversion issue.
  
  
  SAP Notes and Documentation: Look for relevant SAP Notes or documentation that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  Related Information:
  
  SAP BW Documentation: Review the SAP BW documentation for best practices on data loading and transformation.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to resolve the GT051 error and ensure that your data loading processes run smoothly.