Hu: Despite its drawbacks #, WordPress has a comprehensive integration with WooCommerce, an e-commerce | plugin, that itself has a comprehensive integration with Stripe, b-2010 by Patrick and John Collison<Wikipedia, a-r>, and Woo is a product of Automattic, the parent company of WordPress<WP.MIC-H2S4>. These factors # make WordPress, by virtue of these integrations, a highly competent payment processing platform, for all types of purchases: digital, subscriptions, services, digital products, and shipped products, on par with its status as an established blogging platform.
Hu: With AAM-plugin, product pages can be individually managed, allowing these to be fully integrated, as content, into the website’s content suite. // add research
H3S1: Product creation:
Hu: The WooCommerce plugin adds a suite of pre-made pages, including a shopping cart, checkout, and product page, account page, and returns & refund policy; the products menu item, is analogous to posts & pages, a new category of type, meta-1, and is managed separately. This makes the complexity of Woo, approximately equivalent to WordPress itself, but its specialization #, not in themes, rather, in a deeper UX-flow, that is necessary, for the completion of a coherent purchase process.

H4S1: Variable products:
Hu: Variable products # are a powerful product type within Woo’s built-in set #, and can be selected in the Product data<type> dropdown, at the top of the styling menu, in each product edit page # Although products are managed independently from posts, bear in mind # that Woo recycles WordPress’s default post attributes editor, with the same look-and-feel, as reflected by the fact, that product edit pages still contain the /post.php? ref.

The two key # menu tabs that define variable products are attributes, the vector upon which the product can be varied, such as color, or size, and this, generates a list of variations, which will multiply the attribute counts #, and individual prices, with no complex algebra implemented as of 10/22, to programmatically set prices, for products with 100+ vars # Fin.v-1
H3S2: Payment gateways:
H4S1: How to do a $1 WooCommerce check-out test:
References:
Isle, Theme. “How to Add a Variable Product in WooCommerce (Different Prices&Images).” YouTube, YouTube, 24 Sept. 2018, https://www.youtube.com/watch?v=Lalb-8G05Z8.
https://en.wikipedia.org/wiki/Stripe,_Inc.