How To Fix CNV_DMC_HC020 - &1 - &2: It seems as if data is not being replicated; see long text

CNV_DMC_HC020 - Overview

• Message type: E = Error

• Message class: CNV_DMC_HC -

• Message number: 020

• Message text: &1 - &2: It seems as if data is not being replicated; see long text

What causes this issue?

The system reported that the last replication is more than 600 seconds
in the past. Nevertheless, there are logging table entries which should
be processed. This can indicate that a problem with the replication
exists.

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.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_DMC_HC020 - Details

• The SAP error message CNV_DMC_HC020 typically indicates an issue with data replication during a data migration or conversion process, particularly when using the SAP Data Migration Cockpit (DMC) or related tools. The message suggests that there is a problem with the data not being replicated as expected.
  
  Cause:
  
  Data Source Issues: The source system may not be configured correctly, or there may be connectivity issues preventing data from being accessed or replicated.
  Mapping Errors: There could be issues with the mapping of fields between the source and target systems, leading to data not being transferred correctly.
  Transformation Logic: If there are transformation rules applied to the data, they may not be functioning as intended, causing data to be skipped or not replicated.
  Technical Errors: There may be underlying technical issues, such as database locks, insufficient permissions, or system resource constraints.
  
  Configuration Issues: The DMC or related tools may not be configured properly, leading to failures in