No-code bridge from WordPress plugin events to analytics and ad platforms. Open, extensible, no tag manager.

What it does

Conversion Relay turns actions in the plugins you already run — a WooCommerce purchase, a Gravity Forms submission, an EDD sale — into one normalized event, then routes that event to every analytics and advertising platform you enable. No Google Tag Manager, no snippets pasted into functions.php.

The design separates three concerns:

• Sources hook a plugin and emit a NormalizedEvent.
• The Hub applies consent and deduplication, then delivers.
• Destinations send to a platform over a server transport (Measurement Protocol / Conversions API), a client transport (pixel / gtag), or both.

Server delivery runs through a durable async queue (Action Scheduler when available) with retries and a dead-letter state, so a slow network call never blocks checkout. Client pixels are persisted across redirects and fired exactly once on the next page view, so a gateway return or a Woo Blocks checkout doesn't lose the conversion.

Sources

WooCommerce · Easy Digital Downloads · Gravity Forms · Contact Form 7 · Elementor Forms · WordPress core (search, login, registration).

Destinations

Google Analytics 4 (client + Measurement Protocol) · Plausible · Fathom · Umami · PostHog · Meta Ads (Pixel + Conversions API) · Google Ads · Vireo Analytics (same-site, server-side).

Privacy

Advertising destinations default to denied until consent is granted. Do Not Track is honored, and a wpch_consent filter lets a consent-management platform decide per event and category. Enhanced conversions (hashing first-party customer data for better attribution) are opt-in and off by default.

Extending

Register your own source or destination — no core changes needed:

add_action( 'wpch_register_destination', function ( $registry ) {
    $registry->add_destination( new My_Destination() );
} );

Implement WPConversionHub\Destinations\DestinationInterface (or extend AbstractDestination) and WPConversionHub\Sources\SourceInterface (or AbstractSource).

Development

composer install
composer test    # PHPUnit
composer stan    # PHPStan
composer lint    # PHPCS (WordPress standards)

WP-CLI

wp conversion-hub status         # delivery counts by status
wp conversion-hub destinations   # registered destinations, enabled + configured
wp conversion-hub test-event     # dispatch a synthetic event
wp conversion-hub retry          # re-queue failed deliveries

License

GPL-2.0-or-later. See LICENSE.