Vtiger Payments helps easily embed the Paypal Pay Now button for Vtiger CRM. The integration supports Invoices, Sales Order and Quotes module of the CRM. This module will help you place the PayPal right inside the Invoices, Sales Order and Quotes emails sent to your customer. The payment integration of PayPal gateway is configured with the PayPal email account. All the emails sent with this payment integration will be added with the PDF of Invoice.