How To Fix TG452 - Table & loses customer fields, as it was reset to the SAP standard

SAP Error Message - Details

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 452

• Message text: Table & loses customer fields, as it was reset to the SAP standard

What causes this issue?

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

INCLUDE 'DDFD_DEL' OBJECT DOKU ID TX
The specified table ws recognized as user-modified by the object filter
of transaction sPDD. During the adjustment, the option
"Return to SAP standard" was selected for the table.

System Response

Data is lost in these fields during the conversion.

How to fix this error?

INCLUDE 'DDFD_SOLUTION' OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TG452 - Table & loses customer fields, as it was reset to the SAP standard ?

  The SAP error message TG452 indicates that a specific table has lost its customer fields because it has been reset to the SAP standard. This typically occurs during system upgrades, support package installations, or when certain configuration changes are made that affect the table structure.
  Cause:
  
  System Upgrade or Support Package: During an upgrade or the application of a support package, SAP may reset customizations to ensure compatibility with the new version.
  Transport Requests: If a transport request is incorrectly configured or if it overwrites existing customizations, it can lead to the loss of customer fields.
  Manual Changes: Manual changes to the table structure or configuration settings can inadvertently reset the table to its standard state.
  Development Errors: Errors in development or configuration can lead to unintended consequences, including the loss of custom fields.
  
  Solution:
  
  Restore from Backup: If you have a backup of the table structure or the system prior to the change, you can restore the custom fields from there.
  Recreate Custom Fields: If the fields were lost, you may need to recreate them manually. This involves using transaction codes like SE11 (Data Dictionary) to add the custom fields back to the table.
  Check Transport Requests: Review any recent transport requests that may have affected the table. Ensure that they are correctly configured and do not overwrite customizations.
  Review Upgrade Logs: If the issue occurred after an upgrade, check the upgrade logs for any messages related to the table in question. This may provide insights into what caused the reset.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific issue. SAP frequently releases notes that provide guidance on known issues and their resolutions.
  Engage SAP Support: If the issue persists or if you are unsure how to proceed, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), and SE03 (Transport Organizer) for managing table structures and transport requests.
  Documentation: Keep documentation of any custom fields and configurations to facilitate easier restoration in case of future issues.
  Testing: After making changes, conduct thorough testing to ensure that the custom fields are functioning as expected and that no other issues arise.
  
  By following these steps, you should be able to address the TG452 error and restore the necessary custom fields to the affected table.