How To Fix TG458 - **** Check for loss of customer fields ended without warnings

TG458 - Overview

• Message type: E = Error

• Message class: TG - Messages for Upgrade Repository Switch

• Message number: 458

• Message text: **** Check for loss of customer fields ended without warnings

What causes this issue?

There was a check whether customer fields could be accidentally lost
due to the conversions caused by the update.

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

System Response

How to fix this error?

Continue with the update.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TG458 - **** Check for loss of customer fields ended without warnings ?

  The SAP error message TG458, which states "Check for loss of customer fields ended without warnings," typically indicates that there is a potential issue related to the loss of custom fields during a system upgrade or data migration process. This message is often associated with the use of the Data Dictionary (DDIC) in SAP, where custom fields may not be properly handled or recognized during changes to the database structure.
  
  Cause:
  
  Custom Fields: The error usually arises when there are custom fields in the database that may not be compatible with the new version of the software or the changes being made.
  Data Dictionary Changes: Changes in the Data Dictionary (like adding, modifying, or deleting fields) can lead to inconsistencies if custom fields are not properly accounted for.
  Upgrade or Migration: This message often appears during system upgrades or migrations when the system checks for potential data loss or inconsistencies.
  
  
  Solution:
  
  Check Custom Fields: Review the