Zoho Sites provides the PayPal widget so that your site visitors can make payments through PayPal.
Create a PayPal account.
Click the Apps tab at the top of your builder screen.
Click the PayPal widget.
Enter the required details in the boxes on the right.
Click Add.
If you would like to use a payment gateway other than PayPal, use the Embed element to insert the code.
Copy the code from the payment gateway provider.
Open Zoho Sites and click the Elements tab.
Either drag and drop or click the Embed element.
Click Code Snippet on the left.
Paste the code and click OK.