How To Fix CNV20551540 - Deletion via pool tables

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 540

• Message text: Deletion via pool tables

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551540 - Deletion via pool tables ?

  The SAP error message CNV20551540, which indicates "Deletion via pool tables," typically arises during data migration or data conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error suggests that the system is attempting to delete data from a pool table, which is not allowed in SAP.
  Cause:
  
  Pool Tables: In SAP, pool tables are special types of database tables that are used to store data in a way that allows for efficient storage and retrieval. They are not designed for direct manipulation (like deletion) through standard SQL commands.
  Data Migration: During data migration, if the process attempts to delete records from a pool table, the system will throw this error because it violates the rules governing pool tables.
  Incorrect Configuration: The error may also occur due to incorrect configuration in the migration settings or if the data being processed is not aligned with the expected structure.
  
  Solution:
  
  Review Migration Process: Check the data migration process to ensure that it is not attempting to delete records from pool tables. Instead, focus on updating or archiving data as needed.
  Use Appropriate Tables: If you need to delete data, ensure that you are working with transparent tables instead of pool tables. Transparent tables are designed for direct data manipulation.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand the limitations and requirements regarding data handling.
  Adjust Data Mapping: If the error is related to data mapping, review the mapping configuration to ensure that it aligns with the target structure and does not include pool tables for deletion.
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide guidance based on the specific context of your migration.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling data in pool tables.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its capabilities, as well as any limitations regarding data handling.
  Data Model: Understand the data model of your SAP system, including which tables are pool tables and how they should be managed during data migration.
  
  By following these steps, you should be able to resolve the CNV20551540 error and successfully complete your data migration or conversion process.