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1. Add the script

Paste this once, before the closing </body> tag on any page where you want the Builder available.
Your public key: Replace FMV-XXXXXX with the key provided during onboarding. This identifies your account and is safe to include in client-side code.
Domain registration required: Your website’s exact origin (e.g. https://www.example.com.au) must be registered in FMV during onboarding. Without this, the widget will return an “Origin not allowed” error. We handle this as part of setup — just let us know if you add additional domains later.

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2. Add a button

Add the data-fmv-open-widget attribute to an existing button, or create a new one. Option A — Use an existing button:
Option B — New button targeting a specific Builder:
Clicking the button opens the FMV Builder in an iframe overlay on your site.

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3. Test it

  • Refresh the page
  • Click the button
  • Confirm the Builder opens correctly
Done! If the Builder doesn’t open, check the Troubleshooting page.