Paypal is supported in the invoice system. This means that if you enable Paypal in the invoice system, a PayPal image/link will be placed in the invoice PDF. Once clicked will enable your customer to pay you via Paypal.
To enter paypal account details, under Billers & Customers tab, click Billers. Then, click the edit button of the selected biller. Edit the biller account and enter:
1. The Paypal biller name in the Paypal business name field. Note that this is the Paypal email address and not the actuall business name
2. In the Paypal notify url field, enter http://{yourserver.com}/invoice/api-paypal
3. In the Paypal return url field, enter the URL you want the customer redirected to. This could be your website or a default thank you message page etc.
4. Click Save