How To Fix LTR2_CHANGELOG048 - Key type changed

SAP Error Message - Details

• Message type: E = Error

• Message class: LTR2_CHANGELOG -

• Message number: 048

• Message text: Key type changed

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 LTR2_CHANGELOG048 - Key type changed ?

  The SAP error message LTR2_CHANGELOG048 indicates that there has been a change in the key type of a table or a data structure that is being used in a Data Transfer process, typically in the context of SAP Landscape Transformation (SLT) or Data Replication. This error usually arises when the key fields of a table have been modified in a way that is incompatible with the existing configuration or replication setup.
  Cause:
  
  Key Field Modification: The key fields of the source table have been changed (e.g., a field was added, removed, or its data type was altered).
  Inconsistent Metadata: The metadata in the SLT system does not match the current structure of the source table.
  Replication Configuration: The replication configuration may not be updated to reflect the changes made to the key fields.
  
  Solution:
  To resolve the LTR2_CHANGELOG048 error, you can follow these steps:
  
  
  Check Key Field Changes:
  
  Review the source table in the database to identify any changes made to the key fields.
  Ensure that the key fields are correctly defined and that their data types are consistent with the previous configuration.
  
  
  
  Update SLT Configuration:
  
  If changes have been made to the key fields, you may need to update the SLT configuration to reflect these changes.
  You can do this by reinitializing the replication for the affected table. This may involve stopping the replication, adjusting the configuration, and then restarting the replication process.
  
  
  
  Reinitialize the Table:
  
  In the SLT system, you can reinitialize the table by using transaction code LTRC (SLT Configuration).
  Select the relevant table and choose the option to reinitialize it. This will recreate the necessary structures and metadata in the SLT system.
  
  
  
  Check for Errors:
  
  After reinitialization, monitor the replication process for any further errors or issues.
  Use transaction code LTRC to check the status of the replication and ensure that it is running smoothly.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to SLT and the specific error message for additional guidance and best practices.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or specific fixes related to this error.
  SLT Documentation: Review the official SAP documentation for Landscape Transformation to understand the implications of key field changes and how to manage them effectively.
  Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the changes made and the error encountered.
  
  By following these steps, you should be able to resolve the LTR2_CHANGELOG048 error and ensure that your data replication process continues without issues.