Which microservices should be created when splitting a monolithic online store?

When splitting a monolithic online store into microservices, the following main services are usually distinguished:

• Product Catalog — management of products, categories, attributes.
• User Management — registration, authentication, profile.
• Cart and Checkout — adding products to the cart, calculating costs, completing the purchase.
• Payments — processing payment transactions, integration with payment systems.
• Inventory Management — tracking stock levels, updating after orders.
• Delivery Management — calculating delivery costs and times, integration with courier services.
• Reviews and Ratings — collecting and displaying user reviews.
• Administrative Panel — managing content, orders, users.

This division allows isolating responsibilities, simplifying scaling and development of each component independently.