How To Fix CNV_20320_CHECK003 - Implicit activity type merge found

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20320_CHECK - Messages for check functions (Activity Types merge)

• Message number: 003

• Message text: Implicit activity type merge found

What causes this issue?

An <DS:TX.CNV_MBT_IMPLICIT_MERGE>implicit merge</> into a activity type
was detected. This happens for example when activity types will be
merged, but the mapping only contains a part of the source activity
types.
To avoid unwanted merges, you must specify mapping values for all the
source values of the target activity types. The key of the target is
stored in the context of this message.
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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20320_CHECK003 - Implicit activity type merge found ?

  The SAP error message CNV_20320_CHECK003 indicates that there is an implicit activity type merge found during a conversion or migration process, typically related to the SAP S/4HANA migration or data conversion projects. This error usually arises when there are inconsistencies in the activity types being used in the system, particularly when the same activity type is being referenced in multiple contexts or when there are overlaps in the definitions of activity types.
  Cause:
  
  Duplicate Activity Types: The error may occur if there are multiple activity types defined in the system that are implicitly merged, leading to confusion in the data conversion process.
  Inconsistent Data: If the data being migrated contains references to activity types that are not clearly defined or are duplicated, this can trigger the error.
  Configuration Issues: Misconfigurations in the system settings related to activity types can also lead to this error.
  
  Solution:
  
  Review Activity Types: Check the definitions of the activity types in the system. Ensure that there are no duplicates or overlaps in the definitions.
  Data Cleansing: Clean up the data being migrated to ensure that there are no references to non-existent or duplicate activity types.
  Adjust Configuration: If there are configuration settings that are causing the implicit merge, adjust them to ensure that each activity type is uniquely defined and used.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration or conversion process you are undertaking. There may be specific guidelines or patches available to address this issue.
  Use Transaction Codes: Utilize transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to analyze the activity types and their relationships in the system.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Testing: After making changes, conduct thorough testing to ensure that the error is resolved and that the migration or conversion process can proceed without further issues.
  
  If the problem persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.