POP is a powerful API plugin designed for WordPress and WooCommerce, facilitating electronic invoicing for e-commerce businesses. This plugin enables users to automatically generate electronic invoices in XML and PDF formats, simplifying the tax management process in compliance with European regulations. With up to 20 fiscal documents included in the free version, users can manually download invoices, customize PDF templates, and manage various tax configurations for both EU and non-EU customers.

The plugin offers features such as automatic verification of Tax Codes, customized invoice numbering, and comprehensive management and reporting tools. Users can filter invoices by various criteria and integrate seamlessly with WooCommerce. The premium plans enhance functionality with additional features like credit note generation, remote XML saving, and integrations with accounting software, making POP a versatile solution for e-commerce tax management.