How To Fix CNV_20306_CHECK026 - Implicit controlling area merge into controlling area &1 found

CNV_20306_CHECK026 - Overview

• Message type: E = Error

• Message class: CNV_20306_CHECK - Message Class for package CNV_20306_CHECK

• Message number: 026

• Message text: Implicit controlling area merge into controlling area &1 found

What causes this issue?

An <DS:TX.CNV_MBT_IMPLICIT_MERGE>implicit merge</> into a controlling
area was detected. This happens when controlling areas will be merged,
but the mapping only contains a part of the source controlling areas.
To avoid unwanted merges, you must specify mapping values for all the
source values of the target controlling area. The key of the target is
stored in the context of this message. The keys of the source values can
be found in the context of the related messages.
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_20306_CHECK026 - Details

• The SAP error message CNV_20306_CHECK026 indicates that there is an implicit merge of controlling areas during a data migration or conversion process. This typically occurs in the context of SAP S/4HANA migrations or when using the SAP Conversion Tools.
  
  Cause:
  The error arises when the system detects that two or more controlling areas are being implicitly merged. This can happen due to:
  
  Data Consistency Issues: There may be inconsistencies in the data that lead to the system interpreting that multiple controlling areas should be merged.
  Configuration Errors: Incorrect configuration settings in the controlling area or related financial settings can lead to this error.
  Migration Settings: During a migration process, if the settings for controlling areas are not correctly defined, it can lead to implicit merges.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Configuration: Review the configuration of the controlling areas in your SAP system. Ensure that each controlling area is correctly defined and