How To Fix CNV_DMC_HC004 - &1 - &2: Logging table information is missing

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_HC -

• Message number: 004

• Message text: &1 - &2: Logging table information is missing

What causes this issue?

SAP Landscape Transformation is missing information about the logging
table for this application table.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

In transaction LTRC, you can view the possible causes of the issue. On
the tabs <ZK>Table Overview</> and <ZK>Data Transfer Monitor</>, you can
choose the <ZK>View Errors</> pushbutton. On the tab <ZK>Application
Logs</>, you can also view the logs for the initial load and for the
replication process.
The error message and logs can provide guidance for resolving the issue,
for example you can:
Create the logging table manually by using the step <ZK>Create Logging
Tables</> (on the tab <ZK>Processing Steps</> in transaction LTRC).
Stop and start the table again.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_HC004 - &1 - &2: Logging table information is missing ?

  The SAP error message CNV_DMC_HC004 typically indicates that there is missing logging table information during a data migration or conversion process. This error is often encountered in the context of SAP Data Migration Cockpit (DMC) or during the execution of a data migration project.
  Cause:
  The error message CNV_DMC_HC004 can occur due to several reasons, including:
  
  Missing Logging Tables: The logging tables that are supposed to store information about the migration process may not have been created or may have been deleted.
  Incorrect Configuration: The configuration settings for the data migration process may not be set up correctly, leading to issues in logging.
  Authorization Issues: The user executing the migration may not have the necessary authorizations to access or create the logging tables.
  Technical Issues: There may be underlying technical issues with the database or the SAP system that prevent the logging tables from being accessed or created.
  
  Solution:
  To resolve the CNV_DMC_HC004 error, you can take the following steps:
  
  
  Check Logging Tables: Verify if the required logging tables exist in the database. You can do this by checking the relevant database schema or using transaction codes like SE11 (Data Dictionary) to look for the specific logging tables.
  
  
  Recreate Logging Tables: If the logging tables are missing, you may need to recreate them. This can often be done by executing the relevant migration or conversion program again, which should create the necessary tables.
  
  
  Review Configuration: Ensure that the configuration settings for the data migration process are correct. Check the settings in the Data Migration Cockpit or any related configuration transactions.
  
  
  Check Authorizations: Make sure that the user executing the migration has the necessary authorizations to access and create logging tables. You may need to consult with your SAP security team to verify and adjust user roles and permissions.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  
  
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including the context in which it occurred.
  
  
  Related Information:
  
  SAP Data Migration Cockpit (DMC): This is a tool used for data migration in SAP systems, allowing users to migrate data from legacy systems to SAP S/4HANA or other SAP solutions.
  Logging Tables: These tables are essential for tracking the progress and status of data migration processes, helping to identify any issues that may arise during the migration.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SLG1 (Application Log), and others that may assist in troubleshooting.
  
  By following these steps, you should be able to identify and resolve the issue related to the CNV_DMC_HC004 error message.