WordPress newsletter plugin and WooCommerce email marketing
Show Hemero signup forms on your WordPress site and let WooCommerce shoppers opt in to your newsletter at checkout. Everyone who signs up lands in your Hemero lists, ready for campaigns and automations.
Availability
The Hemero plugin is in review at WordPress.org and is not in the plugin directory yet. Until it is listed, the Integrations page in your Hemero account shows it as coming soon. Write to [email protected] and we will tell you when it is ready.
What the Hemero plugin does
Signup popup on every page
Pick a popup form and it shows on every page of your site. When it appears, where it sits and how often a visitor sees it are set on the form in Hemero, so a change shows up on your site without touching WordPress.
Form block, shortcode and widget
Add the Hemero form block in the block editor to place a form inside any page or post. Page builders and older themes can use the hemero_form shortcode or the classic widget.
WooCommerce checkout opt-in box
A newsletter checkbox at checkout, unchecked by default, in both the classic and the block checkout. You choose its text and the list that shoppers join.
Who it is for
Shops on WooCommerce that want repeat buyers on a newsletter list, bloggers and publishers who want a signup form on every post, and agencies that manage several WordPress sites and want all the subscribers in one account. Each site connects separately to your Hemero organization.
You need WordPress 6.3 or newer and PHP 7.4 or newer. The checkout box needs WooCommerce, and the block checkout needs WooCommerce 8.9 or newer.
How to set up the WordPress plugin
Install the plugin
Once the plugin is listed, you will install it like any other: Plugins → Add New, search for “Hemero”, install and activate.
Connect your Hemero account
Open Settings → Hemero and click Connect Hemero account. Hemero asks you to sign in and confirm the organization the site belongs to. There is no API key to copy. Only owners and admins of the organization can connect a site.
Build a form in Hemero
In Hemero, open Forms and create the form you want to show, with single or double opt-in.
Choose where it shows
Back in Settings → Hemero, pick the popup form, add the Hemero form block to any page, and turn on the WooCommerce checkbox if you sell with WooCommerce. Pick the list shoppers join: connecting creates a list called “WooCommerce customers” that you can change.
What data moves, and when
Popup and form signups
Visitors fill the form in their own browser and their details go to Hemero. With double opt-in they are subscribed only after they confirm by email; with single opt-in, right away. Both are a setting of the form.
WooCommerce checkout opt-ins
Only when a shopper ticks the box. After the order is placed, the plugin sends their email, first name, last name and the order number to Hemero in the background, so a slow connection never delays a checkout. If Hemero cannot be reached it tries up to three times. Nothing is sent for shoppers who do not tick the box.
How the shopper is saved
They become a subscribed contact in the list you chose, with the tag woocommerce and the source of your site. Ticking the box is their consent, so there is no confirmation email step. Addresses that bounced or complained are never added back. Someone who unsubscribed earlier is subscribed again because they just ticked the box.
Direction and timing
Data flows from WordPress to Hemero only. The plugin keeps a copy of your settings and forms for 10 minutes and refreshes it in the background, so page views never wait on Hemero.
What the plugin does not do
It does not import your existing WooCommerce customers or past orders: only shoppers who tick the box after you turn it on are sent. It does not copy WordPress users or comment authors into Hemero. It does not tick the box for anyone, and it does not change how WordPress sends its own emails such as order receipts and password resets. Campaigns and automations are written and sent from Hemero, not from WordPress.
Questions
Is the Hemero WordPress plugin free?
Yes. The plugin is free and licensed under the GPL. Hemero itself is billed by the emails you send, with pay as you go or a monthly plan. Every new account also starts with a welcome gift of free emails.
Do I need a Hemero account to use the plugin?
Yes. Forms, lists, subscribers and emails are managed in Hemero, and the plugin connects your site to your account in one click. Creating an account is free.
Does it work with the WooCommerce block checkout?
Yes. The opt-in box works in the classic checkout and in the block checkout. The block checkout needs WooCommerce 8.9 or newer.
Is the WooCommerce newsletter checkbox ticked by default?
No. Shoppers must tick it themselves, which is what privacy laws such as the GDPR ask for. Only shoppers who tick it are sent to Hemero.
Grow your list from every page and every checkout. Create the account, build one form, and your site is ready when the plugin is.