How To Fix CNV_MBT304 - Current phase &1 is not defined in package &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT - PCL message class

• Message number: 304

• Message text: Current phase &1 is not defined in package &2

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 CNV_MBT304 - Current phase &1 is not defined in package &2 ?

  The SAP error message CNV_MBT304 indicates that there is an issue with the migration or conversion process in the SAP system, specifically related to the current phase not being defined in the specified package. This error typically arises during data migration activities, especially when using the SAP S/4HANA Migration Cockpit or other migration tools.
  Cause:
  
  Missing Phase Definition: The current phase of the migration process is not defined in the specified package. This could happen if the migration package is incomplete or if there are configuration issues.
  Incorrect Package Assignment: The package being referenced may not be the correct one for the current migration phase.
  Version Mismatch: There may be a version mismatch between the migration tool and the SAP system, leading to undefined phases.
  Custom Modifications: If there have been custom modifications to the migration process or package, it could lead to this error.
  
  Solution:
  
  Check Package Configuration: Verify that the migration package is correctly configured and that all necessary phases are defined. You may need to consult the documentation for the specific migration package you are using.
  Review Migration Steps: Ensure that you are following the correct sequence of steps in the migration process. Sometimes, skipping a step can lead to undefined phases.
  Update Migration Tool: If you are using an older version of the migration tool, consider updating it to the latest version to ensure compatibility and access to all defined phases.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve the issue.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurred.
  
  Related Information:
  
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which provides detailed information on the migration process and troubleshooting steps.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in diagnosing or resolving migration issues, such as SCC4 for client settings or SIMG_CFMENU for configuration settings.
  
  By following these steps, you should be able to identify the cause of the CNV_MBT304 error and implement a solution to resolve it.