FormRelay
Moosend
See the installation steps to learn how to install our app and change the form name
Before you start
- A Moosend account with at least one mailing list.
- An API key — in Moosend, open Settings → API key.
Step 1: Set Up Moosend Integration
- In your App Dashboard, go to the Sites menu and click on your Authorized Webflow Site.

- Here you will see all your forms across the site.
- A form can send to several destinations, but only one of each kind. Adding a second Moosend destination to the same form is not possible; edit the existing one instead.

- From the left-hand menu, click on Integrations. You will see available categories such as:
- Apps & Platforms (Notion, Slack, Discord, Airtable)
- Email & marketing (HubSpot, Mailchimp, Klaviyo, Brevo, MailerLite, EmailOctopus, Moosend, Omnisend, Sender)
- Automation & Webhooks (Webhook, Zapier, Make, etc.)

- Under Email & marketing, click on Moosend.
- Give the connection a recognizable name (e.g., “Moosend integration - Contact”).
- Paste your Moosend API key (For details, see section 4: How to create a Moosend API key).
- click "Save".
- After clicking "Save", your added Moosend integration will appear under "CONNECTIONS".
- You can edit or delete the connection at any time.

- How to create a Moosend API key
- In your Moosend Dashboard, from the top menu go to "More -> Settings".
- From the settings menu, click API key.
- Click "Generate API key" or "Copy" the existing API key and store it securely — you’ll need it to connect your app.

- Go back to the Forms menu.
- Choose a Form from your authorized Webflow site.
- Click "+ Add destination".
- A popup will open with a dropdown for Integration → Pick an integration.
- Select your Moosend integration from the dropdown.
- Configure Field Mapping by matching each field from your Webflow form to a property in your Moosend Audience -> Email lists -> Create a New list (e.g., Contact).
- Click Save when finished.

- Test the integration:
- Go to your published Webflow site.
- Fill out and submit the form.
- You will see the data appear in your Moosend Audience -> Email lists -> Create a New list (e.g., Contact) within a few seconds.

✅ Your Moosend integration is now successfully set up and ready to sync form submissions.
Still stuck?
Open the site's Logs page in FormRelay. Every attempt is recorded with the destination's own error message, and you can Replay a failed delivery once the cause is fixed. Delivery & Retries explains what the statuses mean.