How To Fix CNV_10020787 - &1 cardinalities were loaded

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 787

• Message text: &1 cardinalities were loaded

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020787 - &1 cardinalities were loaded ?

  The SAP error message CNV_10020787 typically relates to issues encountered during data migration or conversion processes, particularly when using SAP's data migration tools. The message indicates that there is a problem with the cardinalities of the data being loaded, which means that the relationships between different data entities (like one-to-one, one-to-many, or many-to-many) are not being respected or are not as expected.
  Cause:
  
  Data Model Mismatch: The source data may not match the expected data model in the target system. For example, if the target system expects a one-to-many relationship but the source data has a many-to-many relationship, this can trigger the error.
  Data Quality Issues: There may be duplicates or missing data in the source that violate the expected cardinalities.
  Configuration Issues: Incorrect configuration settings in the migration tool or the target system can lead to cardinality mismatches.
  Transformation Logic Errors: If there are errors in the transformation logic that processes the data before loading, this can also lead to cardinality issues.
  
  Solution:
  
  Review Data Relationships: Check the relationships in your source data and ensure they align with the target data model. You may need to adjust the source data or the target model accordingly.
  Data Cleansing: Clean the source data to remove duplicates and ensure that all necessary data is present. This may involve deduplication processes or filling in missing values.
  Adjust Migration Configuration: Review the configuration settings of the migration tool to ensure they are set up correctly for the data being migrated.
  Modify Transformation Logic: If applicable, review and modify the transformation logic to ensure it correctly handles the data relationships.
  Testing: Conduct thorough testing with a subset of data to identify and resolve any issues before performing a full migration.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message for any patches or updates that may address the issue.
  Documentation: Review the documentation for the specific data migration tool you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) for guidelines on handling cardinality issues.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurred.