Connect Gravity Forms to MailerLite
Connect Gravity Forms to MailerLite and every form submission becomes a subscriber in the group you choose. The free ClickSyncr for MailerLite plugin adds a native Gravity Forms feed: connect your API key once, add a MailerLite feed to any form, map your fields, save. So there is no code, and it takes about two minutes per form.
Before you begin
You need three things: the ClickSyncr for MailerLite plugin activated, Gravity Forms active (any license tier), and a MailerLite account (the free tier is fine, with permission to create an API token). Gravity Forms uses the shared plugin key: paste it once under Forms → Settings → MailerLite and every builder on the site reuses it.
Get your MailerLite API key
- Log in to MailerLite and go to Integrations → API (dashboard.mailerlite.com/integrations/api).
- Generate a new token and give it a recognisable name such as
WordPress ClickSyncr. - Copy it immediately: MailerLite shows the full token only once. If you lose it, generate another.
Treat the token like a password. Anyone holding it can read and modify your MailerLite subscribers.
Gravity Forms setup, step by step
- Connect your API key once. Go to Forms → Settings → MailerLite and paste your key. This is the same shared key used by the other builders: saving it here fills it everywhere, and the other way round.
- Open the MailerLite feed screen for your form. Additionally, go to Forms, open a form, then Settings → MailerLite and click Add New. Feeds are per form, so each form can have its own group and mapping.
The MailerLite feed list for a form, with the Add New button. - Fill in the feed and save. Moreover, name the feed, pick the MailerLite group, map Email (required) and the rest of the nine fields, then choose the subscriber status and an optional consent field. Click Save Settings.
A configured feed: group, all nine field mappings, account setting and status override. - Done. In addition, every submission that passes the feed now syncs to MailerLite.
The nine MailerLite fields
Every builder maps the same nine standard MailerLite fields, and any custom fields in your account appear in the list automatically. Only Email is mandatory; an unmapped field is simply skipped and never overwrites existing subscriber data with a blank value. If MailerLite rejects one value’s type, that single field is dropped and the subscriber still syncs.
| Field | MailerLite key | Notes |
|---|---|---|
email |
Required. The subscriber identifier. | |
| Name | name |
First name. |
| Last name | last_name |
|
| Phone | phone |
|
| Company | company |
|
| City | city |
|
| Country | country |
|
| State | state |
|
| Zip | z_i_p |
MailerLite’s key really is z_i_p. |
Verify the sync
First, submit the form on the front end (not the admin preview) with a test address you can recognise, filling every mapped field. Then, in MailerLite, open Subscribers and confirm the subscriber exists, sits in the group you selected, and carries the mapped values. In short, that one minute catches almost every configuration mistake.
Troubleshooting
| Symptom | Cause and fix |
|---|---|
| The group dropdown is empty | The key is missing or mistyped, or you revoked it in MailerLite. Re-paste it and reconnect. A key with a trailing space is the classic culprit. |
| Submissions do not appear in MailerLite | Nine times out of ten the Email field is not mapped. It is the one required mapping. Fix it, then submit a fresh test. |
| A new MailerLite group is not listed | The group list is cached for a few minutes. Use the refresh control. |
| The feed does not fire | Check the feed is active on the form and its conditional logic (if set) matches the test submission. |
| The subscriber syncs but a field is empty | Either that field is unmapped, or it was blank on the submission. ClickSyncr skips empty values, so they never wipe existing MailerLite data. |
Is this a Gravity Forms feed add-on?
Yes. ClickSyncr for MailerLite registers a standard Gravity Forms feed add-on, so feeds behave exactly like the Gravity Forms integrations you already know, including conditional logic from the feed framework.
Do I need a specific Gravity Forms license?
Any license tier works. The plugin only needs Gravity Forms itself active on the site.
Other form builders
ClickSyncr for MailerLite also connects Contact Form 7 · WPForms · Ninja Forms · Fluent Forms · Formidable Forms · Forminator. Overview, features and pricing: MailerLite integration for WordPress. Browse all ClickSyncr integrations.
“MailerLite” is a trademark of its respective owner. ClickSyncr for MailerLite is an independent integration and is not affiliated with, endorsed by, or sponsored by MailerLite.