How To Fix IU645 - You can only control incremental migration in the source system

SAP Error Message - Details

• Message type: E = Error

• Message class: IU - Incremental Conversion (ICNV)

• Message number: 645

• Message text: You can only control incremental migration in the source system

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IU645 - You can only control incremental migration in the source system ?

  The SAP error message IU645, "You can only control incremental migration in the source system," typically occurs during the process of data migration, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with how the migration process is being managed, specifically regarding the incremental migration settings.
  Cause:
  
  Incorrect Configuration: The migration settings may not be properly configured to allow for incremental migration.
  Source System Limitations: The source system may not support the incremental migration feature, or it may not be set up correctly to handle it.
  Migration Cockpit Settings: The settings in the Migration Cockpit may not be aligned with the requirements for incremental migration.
  Data Transfer Method: The method used for data transfer may not support incremental migration.
  
  Solution:
  
  Check Migration Settings: Ensure that the migration settings in the source system are correctly configured for incremental migration. This includes verifying that the necessary parameters are set.
  Review Source System Compatibility: Confirm that the source system is compatible with incremental migration. If it is not, you may need to consider a different migration approach.
  Use the Correct Migration Cockpit: Make sure you are using the appropriate version of the Migration Cockpit that supports incremental migration.
  Consult Documentation: Refer to the official SAP documentation for the Migration Cockpit and incremental migration to ensure that all prerequisites and configurations are met.
  Check for Updates: Ensure that both the source system and the Migration Cockpit are updated to the latest versions, as updates may include fixes for known issues.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  SAP S/4HANA Migration Cockpit: This tool is designed to facilitate the migration of data from legacy systems to SAP S/4HANA. Understanding its features and limitations is crucial for successful data migration.
  Incremental Migration: This refers to the process of migrating data in stages rather than all at once, which can help reduce downtime and improve data integrity.
  SAP Notes and Knowledge Base Articles: Search for relevant SAP Notes or articles that may address this specific error message or provide additional troubleshooting steps.
  
  By following these steps and understanding the context of the error, you should be able to resolve the IU645 error and successfully manage your data migration process.