The general payroll connection within the General settings pertains to all claim types categorized under the 'Addition' section and 'Deduction' section of payroll.
For non-customized payroll connection, when an approved claim report is submitted to payroll, it will manifest as the designated pay item chosen in the General payroll connection (e.g., pay item named 'Expense Claim', and 'Cash Advance Settleement').
If you wish to associate a particular cash advance claim with a specific pay item (custom payroll connection), please consult the guidelines provided here.