Which WooCommerce plugins are not compatible with HPOS?

The most-installed plugins that do not declare HPOS compatibility are WooCommerce Legacy REST API (400,000+ installs, declared incompatible), Min and Max Quantity for WooCommerce (20,000+ installs, not declared), PayTR Sanal POS WooCommerce – iFrame API (10,000+ installs, not declared), PhonePe Payment Solutions (10,000+ installs, not declared), Search by SKU for Woocommerce (10,000+ installs, not declared). Of the 508 most-installed WooCommerce plugins on WordPress.org, 449 (88%) declare HPOS compatibility in their code, 2 declare themselves incompatible and 57 (11%) do not declare it, as of 8 November 2026.

HPOS (High-Performance Order Storage) stores WooCommerce orders in dedicated database tables instead of WordPress posts. It is the default for new stores since WooCommerce 8.2. Plugins that read or write orders the old way must declare that they support it; WooCommerce will not let a store switch to HPOS while an active plugin declares itself incompatible, and flags plugins that declare nothing on its Features settings screen.

In WordPress, go to WooCommerce → Settings → Advanced → Features: WooCommerce lists the active plugins that are incompatible or uncertain. You can also paste your plugin list into our free compatibility checker, or look a plugin up in the table on this page (read from each plugin's code, re-checked whenever a new version is released).

We take the 508 most-installed plugins tagged "woocommerce" on WordPress.org that require WooCommerce, download the current version of each and read its code for FeaturesUtil::declare_compatibility() and the "WC tested up to" header. Declared means what the plugin's own code states; it is not a lab test. Premium plugins sold outside WordPress.org are not in this list.