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WooCommerce supports several product types:

• Simple Product: Basic standalone product.
• Grouped Product: A collection of related products.
• External/Affiliate Product: Redirects users to purchase from an external site.
• Variable Product: Offers variations of a product (size, color, etc.).

Understanding product types is a key topic in WooCommerce interview questions.

You can create a custom WooCommerce template by copying template files from the WooCommerce plugin directory into your theme’s woocommerce folder and modifying them. Use child themes for customization to avoid losing changes when updating the parent theme.

Hooks in WooCommerce allow you to add or modify functionality without altering core files. Key hooks include:

• woocommerce_before_main_content: Adds custom content before the main shop area.
• woocommerce_after_main_content: Adds custom content after the main shop area.
• woocommerce_cart_calculate_fees: Used to add custom fees to the cart.
• woocommerce_order_status_completed: Triggers an action when an order is marked complete.

The WooCommerce REST API enables interaction with the WooCommerce store via HTTP requests. It’s used for creating, updating, and deleting store resources (products, orders, customers) from external applications. Authentication is handled through API keys or JWT.

Use WooCommerce’s built-in logging tools, enable debug mode, and analyze server logs. Plugins like Query Monitor can help identify slow queries or conflicting plugins.

Webhooks enable WooCommerce to send notifications to external URLs when specified events (such as new orders or product updates) occur. This is useful for automating workflows, integrating third-party services, and maintaining data consistency across platforms.

WooCommerce is an open-source plugin for WordPress that transforms a WordPress site into a functional online store. Its primary features include product management, inventory tracking, payment gateway integration, and order management, which make it a flexible and customizable e-commerce solution.

WooCommerce sessions store data across page requests, such as cart items and checkout progress. Use the WC()->session class to set, get, or delete session data:

// Set session data
WC()->session->set('custom_data', 'value');

// Retrieve session data
$data = WC()->session->get('custom_data');

WooCommerce adds tables such as wp_wc_orders, wp_wc_order_items, wp_wc_order_itemmeta, wp_wc_tax_rate, wp_wc_customer_lookup, and others for storing order, product, tax, and customer information.

Using custom SQL queries, you can retrieve WooCommerce data directly from the database:

SELECT * FROM wp_posts 
JOIN wp_postmeta ON wp_posts.ID = wp_postmeta.post_id 
WHERE wp_posts.post_type = 'shop_order' 
AND wp_postmeta.meta_key = '_order_total';

WooCommerce processes payments through integrated gateways like PayPal, Stripe, and WooCommerce Payments. These gateways securely connect to third-party processors, handling transaction security and compliance. Additionally, custom gateways can be added using WooCommerce’s Payment Gateway API.

WooCommerce is a self-hosted, customizable, and open-source plugin, giving users complete control over their store and data. It also integrates seamlessly with WordPress, unlike other platforms which may be more restrictive or have monthly fees. This flexibility and control make WooCommerce highly preferred by businesses looking to create unique stores.

Reducing cart abandonment can involve improving checkout flow, using abandoned cart recovery emails, providing guest checkout options, and offering incentives like discounts. Addressing cart abandonment rates is a frequent topic in WooCommerce interview questions because it has a direct impact on sales.

WooCommerce offers several default shipping methods:

• Flat Rate: A fixed price for shipping, which can be adjusted based on product, location, or shipping class.
• Free Shipping: Allows free shipping if certain conditions (like minimum order amount) are met.
• Local Pickup: Allows customers to pick up orders from a specific location, often free of charge.
• Shipping Zones: Group locations to create specific shipping methods and rates for each zone.

These shipping options are fundamental and are often explored in WooCommerce interview questions to assess configuration skills.

WooCommerce calculates taxes based on customer location and tax rate settings. Available options include:

• Price Inclusive or Exclusive of Tax: Define whether product prices include tax.
• Shipping Taxable: Choose if shipping should be taxed.
• Rounding: Decide how tax amounts are rounded.
• Display Options: Choose whether to display prices with or without tax in the shop and at checkout.

Understanding tax calculations is crucial and frequently appears in WooCommerce interview questions for roles involving store setup.

To create discount codes:

• Go to WooCommerce > Coupons and add a new coupon.
• Set discounts as fixed amounts, percentages, or free shipping.
• Add usage restrictions, such as minimum order amount or specific product applicability.

Coupon creation is often assessed in WooCommerce interview questions to gauge familiarity with promotional features.

Payment gateways process online transactions in WooCommerce. Popular options include PayPal, Stripe, and WooCommerce Payments. To add a new gateway:

• Install and configure a WooCommerce-compatible payment plugin.
• Use custom code if building a custom gateway using WooCommerce’s Payment Gateway API.

Payment gateway knowledge is frequently tested in WooCommerce interview questions as it’s essential for ensuring seamless checkout.

A grouped product combines multiple simple products that customers can add to the cart in a single selection. To create:

• Set the main product type as “Grouped product.”
• Add simple products to the group under “Linked Products.”

Grouped products are useful for bundles or product collections, and understanding them is a key topic in WooCommerce interview questions.