Is Email Marketing compatible with HPOS and Checkout Blocks?
Plugin by Omnisend · checked by Raz Technologies from v1.22.9 on · How we check
Email Marketing 1.22.9 declares compatibility with HPOS (High-Performance Order Storage) in its code. Email Marketing 1.22.9 does not declare Cart and Checkout Blocks compatibility, but its code uses the WooCommerce Blocks integration API. Its "WC tested up to" header says WooCommerce 9.5; the current WooCommerce release is 11.2.2.
| Check | Status | Evidence |
|---|---|---|
| HPOS (High-Performance Order Storage) | Yes— Declares HPOS compatible (omnisend-connect/omnisend-woocommerce.php). Evidence: declared. Verified 29 Oct 2026 (v1.22.9). | Compatibility declaration in omnisend-connect/omnisend-woocommerce.php Declared |
| Cart & Checkout Blocks | Not declared— No Cart/Checkout Blocks declaration in v1.22.9. Evidence: declared. Verified 29 Oct 2026 (v1.22.9). | No declaration; the code uses the Blocks integration API Declared |
| WooCommerce 11.2.2 | No— WC tested up to 9.5; current WooCommerce 11.2.2. Evidence: declared. Verified 29 Oct 2026 (v1.22.9). | "WC tested up to: 9.5" in the plugin header Declared |
Read from the plugin's zip on WordPress.org (v1.22.9), 29 Oct 2026. Declared = what the plugin's own code states; not a lab test. Re-checked within hours of every new version.
What this means for your store
- You can enable HPOS with Email Marketing active: the plugin's own code declares it supports the HPOS order tables. As with any change to order storage, try it on a staging copy first.
- If your store uses the block-based Cart and Checkout (the default for new WooCommerce stores), check that Email Marketing's features appear there on a staging copy. The classic checkout (the [woocommerce_checkout] shortcode) is the fallback.
- Its code does use the WooCommerce Blocks integration API (payment gateways typically register a block payment method this way), so it likely works in the block checkout even without a declaration. This is a hint from the code, not a declaration.
Email Marketing at a glance
| Version | 1.22.9 |
|---|---|
| Last updated | 29 Oct 2026 |
| Active installs | 40,000+ |
| Rating | 4.9/5 (169 ratings) |
| WC tested up to | 9.5 |
| WC requires at least | 6.0 |
| Requires WordPress | 4.7.0 |
| Tested up to WordPress | 7.1.4 |
| Requires PHP | 7.4 |
Source: WordPress.org, .
Versions we have checked
| Version | HPOS | Checkout Blocks | WC tested up to | Checked |
|---|---|---|---|---|
| 1.22.9 | declared compatible | not declared | 9.5 | 29 Oct 2026 |
| 1.22.8 | declared compatible | not declared | 9.5 | 15 Oct 2026 |
A new row is added each time a new version is released and scanned.
Similar WooCommerce plugins: HPOS and Checkout Blocks
| Plugin | Installs | HPOS | Checkout Blocks |
|---|---|---|---|
| Brevo for WooCommerce | 30,000+ | Yes | Yes |
| Pinterest for WooCommerce | 200,000+ | Yes | Yes |
| Klaviyo | 100,000+ | Yes | Not declared |
| MailerLite | 30,000+ | Yes | Not declared |
| WooCommerce Analytics | 20,000+ | Yes | Not declared |
| MWB HubSpot | 6,000+ | Yes | Yes |
FAQ
Is Email Marketing compatible with HPOS?
Email Marketing 1.22.9 declares compatibility with HPOS (High-Performance Order Storage) in its code. Checked 29 October 2026 from the plugin's code on WordPress.org.
Does Email Marketing work with the WooCommerce Checkout Blocks?
Email Marketing 1.22.9 does not declare Cart and Checkout Blocks compatibility, but its code uses the WooCommerce Blocks integration API. Checked 29 October 2026.
Is Email Marketing compatible with WooCommerce 11.2?
Its "WC tested up to" header says WooCommerce 9.5; the current WooCommerce release is 11.2.2. Checked 29 October 2026.