Message type: E = Error
Message class:  HRPAYFI_KATRE - KATRE (Income Register) 
Message number: 601
Message text: DOM ended but element <&1> is expected!
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The SAP error message HRPAYFI_KATRE601 indicates that there is a mismatch in the expected structure of the XML data being processed, specifically that a DOM (Document Object Model) element has ended, but another element is still expected. This typically occurs in the context of payroll processing or data transfer in SAP HR (Human Resources) modules, particularly when dealing with interfaces or data exports.
Cause: XML Structure Issues: The error usually arises from an improperly structured XML document. This could be due to missing closing tags, incorrect nesting of elements, or unexpected end of the document. Data Mapping Errors: If the data being processed does not conform to the expected schema, it can lead to this error. This might happen if there are changes in the data structure or if the data being sent does not match the expected format.
Configuration Issues: Incorrect configuration in the payroll or interface settings can lead to this error,
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