After you have run and confirmed payroll, you will be led to the Payroll Summary of the month (refer to the screenshot below).
Scroll all the way down to the bottom section and you will see a button to Add the Receipt.
Click Add and you will be able to fill in the receipt / bank slip / transaction number and receipt / transaction date for PCB and CP38.
Click Save once you have completed the fields.
If you have not added the receipts for the previous months and would like to revisit the payroll summary of those months, you can head to the particular month of payroll summary by heading to Payroll > Run Payroll and select the month that you'd like to visit to add the receipts.