How To Fix CNV_DMC_HC022 - &1 - &2: No replication has happened up until this point in time

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_HC -

• Message number: 022

• Message text: &1 - &2: No replication has happened up until this point in time

What causes this issue?

SAP Landscape Transformation Replication Server has no record of the
replication process taking place for the table. Possible reasons are:
There was no change to the data in the source system. No changes were
recorded, and therefore there is no need to replicate any data to the
target system.
The table has just switched from the initial load mode to the
replication process. It is possible that the system has not yet finished
processing the entries in the logging table.
The replication process is not running because of an error.

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

System Response

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. In addition, you can check for
additional health check results on the tab <ZK>Application Logs</> in
transaction LTRC.
You can check the logging table for the source system table. You can do
this by using the expert function <ZK>View Unprocessed Logging Table
Records</> (in transaction LTRC, on the tab <ZK>Expert Functions</>).
If there are entries in the logging table, execute the expert function
again and monitor the number of entries in the logging table entries
over a period of time. Depending on the activity in the source system,
you should see a decrease in the number of records to be processed.
If there are no entries in the logging table, then there was no change
to the data in the source system. No changes were recorded, and
therefore there is no need to replicate any data to the target system.

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_HC022 - &1 - &2: No replication has happened up until this point in time ?

  The SAP error message CNV_DMC_HC022 typically occurs in the context of data migration or replication processes, particularly when using the SAP Data Migration Cockpit (DMC) or related tools. This error indicates that there has been no replication of data up to the specified point in time, which can hinder the migration or data transfer process.
  Cause:
  
  
  No Data Replication: The primary cause of this error is that the system has not performed any data replication for the specified time frame. This could be due to various reasons, such as:
  
  The replication process has not been initiated.
  There are issues with the source or target system connectivity.
  Configuration issues in the replication setup.
  Data selection criteria that do not match any records.
  
  
  
  Timing Issues: If the replication is expected to occur at specific intervals, and the process has not yet run or has failed, this error can arise.
  
  
  Configuration Errors: Incorrect settings in the data migration or replication configuration can lead to this error.
  
  
  Solution:
  
  
  Check Replication Status: Verify if the replication process has been initiated and is running correctly. You can check the logs or status in the SAP Data Migration Cockpit or relevant transaction codes.
  
  
  Review Configuration: Ensure that the replication settings are correctly configured. This includes checking:
  
  Source and target system connections.
  Data selection criteria.
  Any filters that may be preventing data from being replicated.
  
  
  
  Run Replication Manually: If the replication process has not been executed, you may need to run it manually to ensure that data is replicated up to the required point in time.
  
  
  Check for Errors: Look for any error messages or logs that might indicate why replication has not occurred. This could include connectivity issues, authorization problems, or data inconsistencies.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of the Data Migration Cockpit you are using. There may be specific guidelines or troubleshooting steps provided by SAP.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They can provide insights based on the specific context of your system and configuration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Data Migration Cockpit Documentation: Review the official SAP documentation for the Data Migration Cockpit for best practices and configuration guidelines.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.