How To Fix CNVA_20400_CHECK040 - A mix of explicit and implicit merges into a statistical key figure

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVA_20400_CHECK - Messages for contorlling areas checks

• Message number: 040

• Message text: A mix of explicit and implicit merges into a statistical key figure

A mix of explicit and implicit merges into a statistical key figure was
detected. This happens when statistical key figures will be merged, but
the mapping only contains a part of the source statistical key figures.
To avoid unwanted merges you have to specify all source values of the
given target statistical key figure.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNVA_20400_CHECK040 - A mix of explicit and implicit merges into a statistical key figure ?

  The SAP error message CNVA_20400_CHECK040 indicates that there is a mix of explicit and implicit merges into a statistical key figure in your planning or reporting process. This typically occurs in the context of SAP's Integrated Business Planning (IBP) or other planning applications where statistical key figures are used to aggregate data.
  Cause:
  
  Explicit Merges: These are merges that are defined by the user, where specific data sources or characteristics are combined intentionally.
  Implicit Merges: These occur automatically based on the system's logic, where the system combines data without explicit instructions from the user.
  The error arises when both types of merges are attempted on the same statistical key figure, leading to ambiguity in how the data should be aggregated.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Merges: Check the configuration of your statistical key figures to identify where explicit and implicit merges are being defined. Ensure that you are not mixing these two types for the same key figure.
  
  
  Adjust Configuration:
  
  If you need to use explicit merges, ensure that all merges for that key figure are defined explicitly.
  Conversely, if you prefer implicit merges, remove any explicit merge definitions for that key figure.
  
  
  
  Data Model Review: Review your data model and planning views to ensure that the statistical key figures are being used correctly and consistently.
  
  
  Testing: After making adjustments, test the changes in a development or test environment to ensure that the error is resolved and that the data is aggregating as expected.
  
  
  Documentation: Document the changes made to the configuration for future reference and to help other users understand the setup.
  
  
  Related Information:
  
  Statistical Key Figures: These are used in SAP to allocate costs or to provide additional information for planning purposes. They can be based on various metrics such as headcount, machine hours, etc.
  Merging Data: Understanding how data merging works in SAP is crucial. Explicit merges are often used for specific business logic, while implicit merges are more general and can lead to unexpected results if not managed properly.
  SAP Notes and Documentation: Check SAP Notes for any specific patches or updates related to this error message. SAP's official documentation can also provide insights into best practices for configuring statistical key figures.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific configuration and business processes.