Practical fixes for WooCommerce checkout, cart, payment, product, order, subscription, email, tax, shipping, and plugin compatibility problems.
If Repeat Customer for WooCommerce continues showing a guest order as “New customer” even when another guest order uses the same billing phone number, check the order statuses before troubleshooting the phone matching itself. The plugin supports returning guest detection by billing email, phone number, company name, and postcode. However, its documentation states that only … Read more
If the Apple Pay Express Checkout button opens correctly but displays: Payment Not Completed after the customer confirms the payment, the first thing to establish is which PayPal plugin was updated. The reported version and release date: 9.2.1July 27, 2026 match Payment Gateway for PayPal on WooCommerce by Easy Payment, not the official WooCommerce PayPal … Read more
A WooCommerce website running PHP 8.4 may encounter a fatal error when a customer changes a product quantity in the cart. Instead of updating the cart, the AJAX request fails and WooCommerce may display an error, stop responding, or leave the cart quantity unchanged. A typical error looks like this: The error may originate from: … Read more
The Mailchimp for WooCommerce PHP 8.4 compatibility issue can produce a str_getcsv() deprecation warning when the plugin processes CSV-formatted data without explicitly providing the escape parameter. The complete warning normally looks like this: On a standard PHP configuration, a deprecation notice does not normally stop PHP execution. However, the warning can still cause serious problems … Read more
A confusing WordPress Site Health warning can appear after installing WooPayments, even on a website where the Jetpack plugin has never been installed. The warning can look like: WordPress may classify it as: That can be alarming when WooPayments was intentionally installed but not yet fully onboarded. It can also be difficult to identify the … Read more
An upgrade of Revolut Gateway for WooCommerce from version 4.22.10 to 5.0.10 can produce an unusual failure: while the Revolut plugin’s Setup Status still reports: The presence of: is important. It means the merchant/account capability check is at least reporting Card as an available payment method. It does not, however, prove that the card widget, … Read more
A WooCommerce order paid successfully through Google Pay via WooCommerce PayPal Payments 4.1.3 can, under a particular express-checkout path, end up with an incomplete shipping address. The order may show: WooCommerce then displays: even though enough partial address information exists to calculate shipping. This exact field pattern is significant. A review of WooCommerce PayPal Payments … Read more
WooCommerce subscriptions can fail to renew automatically even when customers have saved credit cards and normal Stripe payments work correctly. A particularly useful diagnostic message is: The WooCommerce log may also contain: When this error comes from Subscriptions for WooCommerce with Stripe Recurring Payments by Convers Lab, also known as WPSubscription, it indicates that the … Read more
A common WooCommerce catalog requirement is: Show all normal products first, then place every product assigned to the clearance category at the bottom. The important detail is that the product does not necessarily belong only to Clearance. For example: The desired result on the Shop page is: And on the T-Shirts category: The correct test … Read more
A particularly difficult WooCommerce shipping failure can occur when the ELEX WooCommerce USPS Shipping Plugin with Print Label & Shipment Tracking uses its classic Weight-based packing method for an international order. The symptom is severe: The underlying problem is not the product’s dimensions, USPS credentials, or an unsupported service. In ELEX USPS 6.1.5, the international … Read more