Message type: E = Error
Message class:  CNV_21523 - Personnel Subarea Rename 
Message number: 011
Message text: A blank field may be filled with personnel subarea &1
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The SAP error message CNV_21523011 indicates that a blank field in a certain context (likely related to personnel data) is being filled with a personnel subarea value. This error typically arises during data migration or data upload processes, particularly when using tools like the SAP S/4HANA Migration Cockpit or other data transfer methods.
Cause: Data Migration Issues: The error often occurs when migrating data from legacy systems to SAP, where certain fields that are expected to be populated are left blank.
Configuration Issues: The personnel subarea may not be correctly configured in the system, or the mapping of data from the source to the target system may not be set up properly. Validation Rules: SAP has built-in validation rules that prevent the entry of blank fields in certain contexts, especially when a related field (like personnel subarea) is expected to have a value.
Solution: Check Data Source: Review the source data to ensure that all required
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