Message type: E = Error
Message class:  3R - HR-PAY: Messages for evaluation programs (international) 
Message number: 404
Message text: Check table entries for PCG &1 form class &2 already exist
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The SAP error message "3R404 Check table entries for PCG &1 form class &2 already exist" typically occurs in the context of the SAP Payroll module, particularly when dealing with the configuration of payroll forms and their associated processing classes (PCG).
Cause: This error indicates that there is an attempt to create or modify a payroll form (identified by the form class) that already has existing entries in the relevant database tables. The system is designed to prevent duplicate entries for the same processing class and form class combination, which is why this error is triggered.
Solution: To resolve this error, you can follow these steps: Check Existing Entries: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the relevant tables for existing entries. The specific tables to check may depend on your configuration but could include tables related to payroll forms and processing classes. Identify Duplicates: Look for entries that match the processing
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