How To Fix CNV20201045 - __To-No.: (before)=&1,(after)=&2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20201 -

• Message number: 045

• Message text: __To-No.: (before)=&1,(after)=&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 CNV20201045 - __To-No.: (before)=&1,(after)=&2 ?

  The SAP error message CNV20201045 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a mismatch in the number of records being processed, specifically related to the "To-No." (which usually refers to a target number or identifier).
  Cause:
  The error message CNV20201045 is generally caused by one of the following issues:
  
  
  Data Inconsistency: There may be inconsistencies in the data being migrated, such as missing or duplicate entries that lead to discrepancies in the expected number of records.
  
  
  Mapping Issues: The mapping between the source and target data structures may not be correctly defined, leading to errors in how records are interpreted during the migration.
  
  
  Configuration Errors: Incorrect configuration settings in the migration tool or process can lead to issues in how data is processed.
  
  
  Technical Limitations: There may be technical limitations or constraints in the system that prevent the successful processing of the data.
  
  
  Solution:
  To resolve the CNV20201045 error, you can take the following steps:
  
  
  Check Data Consistency: Review the source data for any inconsistencies, such as missing records or duplicates. Ensure that the data adheres to the expected format and structure.
  
  
  Review Mapping Configuration: Verify the mapping between the source and target data structures. Ensure that all fields are correctly mapped and that there are no missing mappings.
  
  
  Adjust Migration Settings: Check the configuration settings of the migration tool. Make sure that all parameters are set correctly and that there are no restrictions that could lead to this error.
  
  
  Log Analysis: Review the migration logs for additional details about the error. The logs may provide insights into which specific records or fields are causing the issue.
  
  
  Test Migration: If possible, perform a test migration with a smaller dataset to identify if the issue persists. This can help isolate the problem.
  
  
  Consult Documentation: Refer to the official SAP documentation or notes related to the migration process for any specific guidance or known issues related to this error.
  
  
  Seek Support: If the issue persists after trying the above steps, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific migration tool you are using for best practices and troubleshooting tips.
  Community Forums: Engage with the 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 and resolve the underlying cause of the CNV20201045 error.