How To Fix TA455 - Critical difference in table &: Key field &

SAP Error Message - Details

• Message type: E = Error

• Message class: TA - Extended table maintenance (eval., Customizing, client copy)

• Message number: 455

• Message text: Critical difference in table &: Key field &

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message TA455 - Critical difference in table &: Key field & ?

  The SAP error message TA455, which indicates a "Critical difference in table &: Key field &," typically arises during data consistency checks or when performing operations that involve table updates or comparisons. This error suggests that there is a discrepancy in the key fields of a specified table, which can lead to data integrity issues.
  Cause:
  
  
  Data Inconsistency: The most common cause of this error is that the data in the specified table is inconsistent. This could be due to:
  
  Manual data entry errors.
  Issues during data migration or data uploads.
  Incomplete or failed transactions that did not properly update the database.
  
  
  
  Custom Development: If there are custom programs or enhancements that manipulate the data in the table, they might not be handling the key fields correctly.
  
  
  Database Corruption: In rare cases, database corruption can lead to discrepancies in key fields.
  
  
  Solution:
  
  
  Data Consistency Check: 
  
  Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the contents of the table and identify any inconsistencies.
  Compare the data in the table with the expected values or with other related tables.
  
  
  
  Repair Data: 
  
  If inconsistencies are found, you may need to correct the data manually or through a programmatic approach, depending on the volume and nature of the discrepancies.
  Ensure that any changes made are logged and that you have backups in case of further issues.
  
  
  
  Review Custom Code: 
  
  If the error is related to custom developments, review the code to ensure that it correctly handles key fields and adheres to SAP standards.
  
  
  
  Database Integrity Check: 
  
  If you suspect database corruption, you may need to run database integrity checks or consult with your database administrator.
  
  
  
  Consult SAP Notes: 
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error or provide guidance on similar issues.
  
  
  
  Contact SAP Support: 
  
  If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11, SE16, and SE37 (for function modules) to investigate the issue further.
  Data Dictionary: Understanding the structure of the table in question can help identify what key fields are involved and how they should relate to other data.
  Backup Procedures: Always ensure that you have a backup of your data before making any changes, especially when dealing with critical tables.
  
  By following these steps, you should be able to diagnose and resolve the TA455 error in SAP.