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Google Analytics 4

Estimated reading: 3 minutes Updated August 1, 2026

Ga4 is a web analytics platform. Advanced Form Integration sends form submissions to Ga4, so every form entry on your WordPress site can create or update records automatically without manual data entry.

What you’ll need

  • An active Ga4 account.
  • An API key from Ga4 (see below).
  • The Advanced Form Integration plugin installed and activated.

Get your Ga4 API key

Ga4 authenticates with an API key.

  1. Sign in to your Ga4 account.
  2. Navigate to the API or integrations section in your account settings.
  3. Generate or copy your API Key.
  4. In WordPress, go to AFI → Settings → Ga4, click Add New Account, and paste the key.

Connect Ga4 to AFI

  1. In WordPress, go to AFI → Settings and open the Ga4 tab.
  2. Click Add New Account and paste the API key or token.
  3. Give the account a name you will recognise.
  4. Click Save.

Create the integration

  1. Go to AFI → Add New.
  2. Give the integration a name, for example Form to Ga4.
  3. Under Trigger, pick the form plugin and the specific form you want to listen on.
  4. Under Action → Platform, select Ga4.
  5. In Task, choose Send Event.
  6. Pick the saved account in the Ga4 Account dropdown.
  7. Map your form fields onto the Ga4 fields listed below.
  8. Optional: open Conditional Logic to limit which submissions are sent.
  9. Click Save Integration.

Tasks supported

Send Event

Sends an event to the platform from the form submission.

Field Field key Required Notes
Event Name eventName No Recommended: generate_lead
Client ID (from _ga cookie clientId No Leave blank to auto-generate a random one for this submission
Value value No
Currency (e.g. USD currency No
Lead Source leadSource No

Pro features

The Pro integration extends the free base with additional field mapping, custom field support, and other enhancements. Pro uses the same connection and tasks as the free version, so your existing integrations keep working.

Feature Free Pro
Standard tasks
Standard field mapping
Custom field mapping Limited
Additional task variants Limited

Conditional logic example

Only send data to Ga4 when the form’s email field is not empty, so test submissions or incomplete entries do not create records. Add a condition: Email is not empty.

Troubleshooting

Nothing arrives in Ga4

Open AFI → Log and find the most recent entry for this integration. AFI stores the request it sent and the raw response it got back. If there is no log entry at all, the trigger never fired: re-check the form selection and submit a real test entry from the front end.

API key rejected

Copy the key directly from Ga4 with no leading or trailing spaces. If the key was revoked or regenerated, update it in AFI → Settings → Ga4.

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