Message type: E = Error
Message class:  CNV_20200_CHECK - Messages for check functions (company code merge) 
Message number: 290
Message text: Company code missing for source house bank acct ID &1
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The SAP error message CNV_20200_CHECK290 indicates that there is a missing company code for a source house bank account ID in the context of a data migration or conversion process. This error typically arises during the execution of a conversion program, particularly when migrating financial data or settings related to house banks.
Cause: Missing Configuration: The house bank account ID specified in the error message does not have an associated company code in the system. This could be due to incomplete configuration or data entry errors. Data Migration Issues: If you are migrating data from another system, the source data may not have the necessary mappings or configurations set up in SAP. Incorrect Mapping: The mapping of house bank accounts to company codes may not have been correctly defined in the migration settings.
Solution: Check House Bank Configuration: Go to the transaction code FI12 (House Bank) in SAP. Verify that the house bank account ID mentioned in the
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