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Getting Started

Using FormRelay

Destinations

FormRelay

Omnisend

See the installation steps to learn how to install our app and change the form name

Before you start

  • An Omnisend account.
  • An API key — in Omnisend, open Store settings → API keys and click Create API key.

Step 1: Set Up Omnisend Integration

  1. In your App Dashboard, go to the Sites menu and click on your Authorized Webflow Site.

Selecting Site in App Dashboard

  • 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 Omnisend destination to the same form is not possible; edit the existing one instead.

Selecting Omnisend Form in App Dashboard

  1. 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.)

On Integration menu selecting Omnisend

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

Integration Omnisend popup window

  1. How to create an Omnisend API key
    • In your Omnisend Dashboard, go to "Store Settings".
    • From the left‑hand menu, under Store Settings, click API.
    • Click "+ Create API key".
    • A pop‑up will appear:
      • There Create a name for API key (e.g., “FormRelay by Faizatech” ).
      • Click Create API Key.
    • Your new API key will be displayed.
    • Copy the key and store it securely — you’ll need it to connect your app.

Generating an API key in Omnisend

  1. 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 Omnisend integration from the dropdown.
    • Configure Field Mapping by matching each field from your Webflow form to a property in your Omnisend Audience -> Contacts.
    • Click Save when finished.

Integration Omnisend mapping window

  1. Test the integration:
    • Go to your published Webflow site.
    • Fill out and submit the form.
    • You will see the data appear in your Omnisend Audience -> Contacts within a few seconds.

Showing data transfer from webflow published site to Omnisend contacts lists

✅ Your Omnisend 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.