How To Fix CNV_20211_CHECK256 - Explicit merge into company &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20211_CHECK - Messages for check functions (company conversion)

• Message number: 256

• Message text: Explicit merge into company &1

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20211_CHECK256 - Explicit merge into company &1 ?

  The SAP error message CNV_20211_CHECK256 with the description "Explicit merge into company &1" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is an issue with merging data into a specific company code or entity.
  Cause:
  
  Data Conflicts: The error often arises when there are conflicting entries in the data being migrated. For example, if there are duplicate entries or inconsistencies in the data that violate the integrity constraints of the target company code.
  Company Code Configuration: The company code specified in the error message may not be properly configured or may not exist in the target system.
  Missing Master Data: Required master data (like customers, vendors, or materials) may be missing or not properly linked to the company code.
  Inconsistent Data Structure: The structure of the data being imported may not match the expected structure in the target system.
  
  Solution:
  
  Check Data for Duplicates: Review the data being migrated for any duplicate entries or inconsistencies. Ensure that there are no conflicting records for the same company code.
  Verify Company Code Configuration: Ensure that the company code specified in the error message exists in the target system and is properly configured.
  Ensure Master Data Completeness: Make sure that all necessary master data is present and correctly linked to the company code. This includes checking for customers, vendors, and other relevant entities.
  Data Mapping and Transformation: Review the mapping and transformation rules applied during the migration process to ensure they align with the target system's requirements.
  Consult Migration Logs: Check the migration logs for additional details about the error. This can provide insights into what specific data or configuration is causing the issue.
  Test Migration in a Sandbox: If possible, perform a test migration in a sandbox environment to identify and resolve issues before executing the migration in the production environment.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on data migration best practices.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific migration tool you are using for additional troubleshooting steps and guidelines.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.