Integration Guide

Securing Your PayPal Payments Standard Buttons
Reconciling Payments Through Instant Payment Notification
8
342 June 2012 PayPal Payments Standard Integration Guide
To reconcile payments manually through your transaction history:
1. Log in to your PayPal Premier account or Business account.
2. In the My Account tab, click the History subtab.
3. In the Show dropdown menu, select “Payments Received”.
4. Specify a time frame for the payments you want to verify.
5. Click the Search button.
6. For each payment that was found, verify that the item amounts match the amounts that you
charge.
For detailed instructions on using the History subtab, see the
Merchant Setup and Administration
Guide.
Reconciling Payments Through Instant Payment Notification
If you process a large number of transactions, reconcile your payments automatically through
Instant Payment Notification by verifying that the item amounts match the amounts that you
charge. You are required to reconcile your payments, especially if you have unprotected or
non-encrypted buttons.
With Instant Payment Notification, PayPal posts a message to your server when someone pays
you. You specify the URL through which you receive Instant Payment Notification messages
in your PayPal account. Instant Payment Notification messages are text files that include
payment details, such as the name of the payer and the amounts charged for each item.
To learn more about Instant Payment Notification, see the
Instant Payment Notification Guide.
Protecting Payment Buttons by Using Encrypted Website
Payments
Read the following topics to learn about protecting payment buttons by using Encrypted
Website Payments:
 “How Encrypted Website Payments Helps Prevent Fraudulent Payments” on page 343
 “Public Key Encryption Used by Encrypted Website Payments” on page 343
 “Setting Up Certificates Before Using Encrypted Website Payments” on page 344
 “Using Encrypted Website Payments to Protect Your Payment Buttons” on page 346