How To Fix CNV_20340_CHECK000 - Implicit cycle merge found

CNV_20340_CHECK000 - Overview

• Message type: E = Error

• Message class: CNV_20340_CHECK - Message Class for 20340 Checks

• Message number: 000

• Message text: Implicit cycle merge found

What causes this issue?

An <DS:TX.CNV_MBT_IMPLICIT_MERGE>implicit merge</> of cycles was
detected. This occurs for example when two controlling areas are merged,
which contain cycles with the same name.
A merge of cycles is not supported. To resolve this issue, you have to
change the mapping values for the cycles.
You cannot run the transformation solution Controlling Area Merge
because certain prerequisites have not been met. Please change your
mapping accordingly.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_20340_CHECK000 - Details

• The SAP error message CNV_20340_CHECK000 with the description "Implicit cycle merge found" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is a cyclic dependency in the data relationships that the system is trying to process, which can prevent the successful execution of the migration.
  
  Cause:
  The error is usually caused by:
  
  Cyclic Dependencies: There are relationships in the data that create a cycle. For example, if entity A references entity B, and entity B references entity A, this creates a cycle that the migration process cannot resolve.
  Incorrect Data Mapping: The mapping of data between source and target systems may not be correctly defined, leading to cycles in the data relationships.
  Data Integrity Issues: The source data may have integrity issues, such as missing or incorrect references, which can lead to cycles when the data is being