Message type: E = Error
Message class:  HRPAYDE_EO - Messages for pay grade regulation 
Message number: 003
Message text: Occupation &1 does not have case group &2.
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The SAP error message HRPAYDE_EO003 indicates that there is an issue related to the occupation and case group in the context of payroll processing, particularly in the German payroll module. This error typically arises when the system cannot find a valid mapping between the specified occupation and the case group in the configuration.
Cause: Missing Configuration: The occupation specified in the payroll processing does not have a corresponding case group defined in the system. Incorrect Data Entry: There may be a typo or incorrect entry in the occupation or case group fields. Master Data Issues: The employee's master data may not be correctly maintained, leading to discrepancies in the occupation or case group assignment. Customizations: If there are custom developments or modifications in the payroll process, they might not align with the standard configurations.
Solution: Check Configuration: Go to the configuration settings for the occupation and case groups in the SAP system. Ensure that the occupation in question
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