How To Fix CNV_MBT_46302 - Data already saved

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_46 - PCL message class

• Message number: 302

• Message text: Data already saved

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 CNV_MBT_46302 - Data already saved ?

  The SAP error message CNV_MBT_46302 typically indicates that there is an attempt to save data that has already been saved in the system. This error is often encountered during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools.
  Cause:
  
  Duplicate Data: The most common cause of this error is that the data you are trying to save already exists in the target system. This can happen if the migration process is run multiple times without proper data cleansing or if there are overlapping data sets.
  Incorrect Mapping: If the mapping of source data to target data is not correctly defined, it may lead to attempts to insert records that already exist.
  Transaction Logic: The logic in the migration program may not account for existing records, leading to attempts to re-insert them.
  
  Solution:
  
  Check for Duplicates: Before running the migration again, check the target system for existing records that match the data you are trying to migrate. You can use transaction codes like SE16 or SE11 to query the relevant tables.
  Data Cleansing: Ensure that the source data is cleansed and does not contain duplicates. This may involve deduplication processes or validation checks before migration.
  Adjust Migration Logic: If you are using a custom migration program, review the logic to ensure it handles existing records appropriately. You may need to implement checks to skip records that already exist.
  Use Update Instead of Insert: If the intention is to update existing records rather than insert new ones, modify the migration process to perform updates instead of inserts.
  Consult Migration Documentation: Review the SAP documentation related to the specific migration tool you are using for any additional guidelines or best practices.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, refer to the official SAP documentation for guidelines on handling data migration issues.
  Community Forums: Consider searching or posting in SAP community forums or SAP support channels for insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to resolve the CNV_MBT_46302 error and successfully complete your data migration process.