PayPal is a leading payment gateway that offers a range of solutions for businesses operating in the online space. One such solution is PayPal Invoice, which allows businesses to generate and send professional invoices to their customers. With the increasing popularity of e-commerce platforms, the integration of PayPal Invoice with these platforms has become crucial for businesses. In this comprehensive guide, we will explore how PayPal Invoice integrates seamlessly with e-commerce platforms, the benefits of this integration, and troubleshooting common issues that may arise during the process.