How To Fix CNV_CDMC_CA219 - & tables in customer namespace are actually in use

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_CA - CDMC Clearing Analysis

• Message number: 219

• Message text: & tables in customer namespace are actually in use

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDMC_CA219 - & tables in customer namespace are actually in use ?

  The SAP error message CNV_CDMC_CA219 typically indicates that there are tables in the customer namespace that are currently in use, which can lead to issues during data migration or conversion processes. This error is often encountered in the context of SAP's data migration tools, particularly when using the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  
  
  Active Usage of Customer Tables: The error suggests that certain tables in the customer namespace (usually tables prefixed with "Z" or "Y") are being accessed or modified by other processes or users. This can happen if:
  
  There are active transactions that are using these tables.
  Background jobs or processes are running that interact with these tables.
  There are open database connections that are locking the tables.
  
  
  
  Data Migration Process: During a data migration or conversion, the system checks for any active usage of customer tables to ensure data integrity. If it finds that the tables are in use, it raises this error to prevent potential data inconsistencies.
  
  
  Solution:
  
  
  Check Active Sessions: Use transaction codes like SM66 (Global Work Process Overview) or SM50 (Work Process Overview) to check for active sessions that might be using the customer tables. Identify and terminate any unnecessary sessions.
  
  
  Review Background Jobs: Check for any background jobs that might be accessing the tables using transaction SM37. If you find any jobs that are using the tables, you may need to wait for them to complete or cancel them if they are not needed.
  
  
  Lock Entries: Use transaction SM12 to check for lock entries on the tables. If there are locks that are preventing access, you may need to delete those locks if they are no longer valid.
  
  
  Schedule Downtime: If the tables are critical and cannot be accessed during normal operations, consider scheduling a downtime for the system to perform the migration or conversion process without interference.
  
  
  Consult Documentation: Review the SAP documentation related to the specific migration or conversion process you are performing. There may be specific guidelines or prerequisites that need to be followed.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP Support for assistance. They may provide insights based on the specific context of your system and the error.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data migration, as it may contain specific instructions or best practices.
  System Logs: Analyze system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  By following these steps, you should be able to resolve the CNV_CDMC_CA219 error and proceed with your data migration or conversion process.