How To Fix CNV20201430 - &1: No duplicates due to simul. conv. of table &3 in fiscal years <= &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20201 -

• Message number: 430

• Message text: &1: No duplicates due to simul. conv. of table &3 in fiscal years <= &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20201430 - &1: No duplicates due to simul. conv. of table &3 in fiscal years <= &2 ?

  The SAP error message CNV20201430 is related to the data migration process, specifically during the simulation conversion of a table in the context of a financial year. This error typically occurs when there are duplicate entries in the data that are being processed, and the system is set to prevent duplicates during the conversion.
  Cause:
  The error message indicates that the system has detected potential duplicate entries in the specified table (&3) for fiscal years that are less than or equal to the specified year (&2). The simulation conversion process is designed to ensure data integrity, and as such, it will not allow duplicates to be created in the target system.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates: Check the source data for duplicates in the specified table. You can run queries or reports to identify any duplicate entries that may exist for the fiscal years in question.
  
  
  Data Cleansing: Once duplicates are identified, you will need to cleanse the data. This may involve:
  
  Removing duplicate entries.
  Merging records if necessary.
  Ensuring that each entry is unique based on the key fields defined in the table.
  
  
  
  Adjust Conversion Settings: If the duplicates are valid and should be retained, you may need to adjust the conversion settings or logic to allow for these entries. However, this should be done with caution, as it may lead to data integrity issues.
  
  
  Re-run the Simulation: After addressing the duplicates, re-run the simulation conversion process to see if the error persists.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration project you are working on. There may be additional guidelines or best practices for handling such errors.
  
  
  Seek Support: If you are unable to resolve the issue, consider reaching out to SAP support or consulting with a professional who specializes in SAP data migration.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in analyzing the data, such as SE16 (Data Browser) or SE11 (Data Dictionary).
  Migration Tools: If you are using specific SAP migration tools (like SAP S/4HANA Migration Cockpit), check the tool's documentation for specific error handling procedures.
  Data Model: Understand the data model of the table in question to ensure that you are addressing the correct fields and relationships.
  
  By following these steps, you should be able to resolve the CNV20201430 error and successfully complete the data migration process.