Message type: E = Error
Message class:  CNV_20000 - Messages for fiscal year change 
Message number: 008
Message text: &1 BSEG records with ZUONR for conversion found
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The SAP error message CNV_20000008 typically relates to issues encountered during data conversion processes, particularly in the context of the SAP S/4HANA migration or data transfer projects. The message indicates that there are BSEG (Accounting Document Segment) records with a ZUONR (Clearing Document Number) that have been found during the conversion process.
Cause: The error arises when the data conversion tool identifies BSEG records that contain a ZUONR value, which may not be valid or expected in the context of the conversion. This can happen due to: Inconsistent Data: The data in the source system may have inconsistencies or invalid entries that do not meet the requirements of the target system. Missing Configuration: The target system may not be configured to handle certain clearing document numbers, leading to conversion issues. Data Mapping Issues: There may be issues with how data is mapped from the source to the target system, particularly for financial documents.
Solution: To resolve this
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