How To Fix CNVA_20310_CHECK012 - A mix of explicit and implicit merges into a cost center was detected

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVA_20310_CHECK -

• Message number: 012

• Message text: A mix of explicit and implicit merges into a cost center was detected

Cost centers are to be merged, but some of the source cost centers are
missing from the mapping.
To avoid unwanted merges, specify all source values for the target cost
center.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNVA_20310_CHECK012 - A mix of explicit and implicit merges into a cost center was detected ?

  The SAP error message CNVA_20310_CHECK012 indicates that there is a mix of explicit and implicit merges into a cost center during a data migration or transformation process. This typically occurs in the context of SAP's Controlling (CO) module, particularly when dealing with cost center accounting.
  Cause:
  
  Explicit Merges: These are merges that are defined by the user, where specific cost centers are manually combined or merged into a new cost center.
  Implicit Merges: These occur automatically based on certain criteria or rules defined in the system, where cost centers are merged without direct user intervention.
  The error arises when the system detects that both types of merges are being applied to the same cost center, which can lead to inconsistencies in the data and reporting.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Merging Rules: Check the rules and criteria set for merging cost centers. Ensure that you are not mixing explicit and implicit merges for the same cost center.
  
  
  Data Consistency Check: Perform a thorough review of the data being migrated or transformed. Ensure that the cost centers involved are not being processed in conflicting ways.
  
  
  Adjust Merging Strategy: Decide on a single approach for merging cost centers. Either use explicit merges or implicit merges, but not both for the same cost center.
  
  
  Consult Documentation: Refer to SAP documentation or guidelines related to cost center merging to ensure compliance with best practices.
  
  
  Testing: After making adjustments, conduct tests to ensure that the merging process works without triggering the error.
  
  
  Seek Support: If the issue persists, consider reaching out to SAP support or consulting with an SAP expert who can provide insights based on your specific configuration and data.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Transaction Codes: Familiarize yourself with transaction codes related to cost center accounting, such as KS01 (Create Cost Center), KS02 (Change Cost Center), and KS03 (Display Cost Center).
  Data Migration Tools: If you are using tools like SAP Data Services or LSMW (Legacy System Migration Workbench), ensure that the mapping and transformation rules are correctly set up to avoid such conflicts.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.