Hello @susandi,
You can see the associated payment under the Transaction tab on the left-side of your invoice.
- Go to Customers.
- Select Customer Center.
- Find and open the profile of your customer.
- Under Transactions, select and open any of the paid invoices.
- Click Transaction.
I'm including this helpful article in case you wanted to start customizing your invoice template.
If you have any other questions, please let me know. Have a fantastic day!