Message type: E = Error
Message class:  CNV_20200_CHECK - Messages for check functions (company code merge) 
Message number: 261
Message text: Merge into (Company code &1, Securities account &2)
Merge of securities accounts
Error
Securities accounts cannot be merged and must be renamed. Provide a
suitable mapping for securities accounts.
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.
The SAP error message CNV_20200_CHECK261 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error is related to the merging of financial data, specifically concerning company codes and securities accounts.
Cause: The error message indicates that there is an issue with the merging of data for a specific company code and securities account. This can happen due to several reasons, including: Data Inconsistency: There may be inconsistencies in the data being migrated, such as duplicate entries or missing references.
Configuration Issues: The company code or securities account may not be properly configured in the system. Missing Master Data: Required master data for the company code or securities account may be missing or incomplete. Authorization Issues: The user performing the migration may not have the necessary authorizations to access or modify the relevant data.
Solution: To resolve the CNV_20200_CHECK261 error, you can follow these steps: Check Data Consistency: Review the
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