Message type: E = Error
Message class:  HRBAS_BOL - Message Class for HRPD BOL Generation Report 
Message number: 004
Message text: No entry in table T77UICONVCLASS for this Infotype, Objtype and Subtype
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The SAP error message HRBAS_BOL004 indicates that there is no entry in the table T77UICONVCLASS for the specified Infotype, Object Type, and Subtype. This error typically occurs in the context of HR (Human Resources) module transactions, particularly when trying to access or display certain HR-related data.
Cause: The error is caused by the absence of a configuration entry in the T77UICONVCLASS table for the specific combination of Infotype, Object Type, and Subtype you are trying to access. This table is used to define the conversion classes for UI elements in HR applications, and if the required entry is missing, the system cannot process the request.
Solution: To resolve this error, you can follow these steps: Check the Infotype, Object Type, and Subtype: Verify that you are using the correct Infotype, Object Type, and Subtype in your transaction. Ensure that they are valid and correctly entered. Maintain Table T77UICONVCLASS: Go to transaction SE11 (Data Dictionary). Enter the table name
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