How To Fix CNV20308021 - Message type was changed from &1 to &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20308 - SLO CWB Package Comparison

• Message number: 021

• Message text: Message type was changed from &1 to &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20308021 - Message type was changed from &1 to &2 ?

  The SAP error message CNV20308021 indicates that there has been a change in the message type for a specific object or process. This typically occurs during data migration or conversion processes, especially when using SAP's tools for data transfer, such as the SAP S/4HANA Migration Cockpit or other data migration tools.
  Cause:
  The error message CNV20308021 is triggered when the system detects that the message type for a particular data record has been altered. This can happen due to various reasons, including:
  
  Data Migration Changes: During the migration process, the mapping of message types may have been modified, leading to inconsistencies.
  Configuration Changes: Changes in the configuration settings of the system can lead to different message types being assigned to the same data.
  Custom Development: If there are custom developments or enhancements in the system, they may inadvertently change the expected message types.
  
  Solution:
  To resolve the CNV20308021 error, you can take the following steps:
  
  Check Migration Settings: Review the migration settings and mappings to ensure that the message types are correctly defined and consistent with the source data.
  Review Configuration: Look into the configuration settings related to the message types in the relevant modules (e.g., MM, SD, etc.) to ensure they are set up correctly.
  Data Validation: Validate the data being migrated to ensure that it adheres to the expected formats and types. This may involve checking for any discrepancies in the source data.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific migration tool you are using for any known issues or additional guidance.
  Debugging: If necessary, use debugging tools to trace the process and identify where the message type change is occurring.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the CNV20308021 error and implement a suitable solution.