By enabling PayPal payments you can use the service of PayPal to collect payments from your customers.
A payment option appears on your invoices. Your customers can pay you instantly. A customer can pay an invoice by credit/debit card or by PayPal. Depending on your country your customers can use iDeal or Sofort.
Please note: Your invoices won't be marked as paid automatically
How to activate PayPal payments
Navigate to Settings – Payment options – PayPal
Enter your PayPal account email
Save the settings
A payment options is now visible on your invoices and your customers can pay you by PayPal. Only a customer with a PayPal account can pay you by card.