Google Ads conversion gtag('event', 'conversion')

analytics.subscribe('checkout_completed', (event) => {
  const { checkout } = event.data;
  if (!checkout || !checkout.totalPrice) return;

  // Google Ads conversion tracking has no client-side sandbox equivalent to
  // gtag('event','conversion', {send_to: 'AW-XXX/YYY'}) — the sandbox-correct
  // path is the Google Ads Enhanced Conversions for Leads / Click Conversion
  // Upload API (server-side), OR routing through GA4 (previous snippet) with
  // a linked Google Ads account importing the GA4 "purchase" conversion.
  // If a direct Ads-only conversion action must stay separate from GA4,
  // forward it here via the same Measurement Protocol call used for GA4 —
  // Google Ads reads GA4-linked conversions automatically once the accounts
  // are linked in Google Ads > Conversions > Import.
  fetch(`https://www.google-analytics.com/mp/collect?measurement_id=MEASUREMENT_ID&api_secret=API_SECRET`, {
    method: 'POST',
    keepalive: true,
    body: JSON.stringify({
      client_id: event.clientId,
      events: [{
        name: 'purchase',
        params: {
          transaction_id: checkout.order ? checkout.order.id : checkout.token,
          value: checkout.totalPrice.amount,
          currency: checkout.totalPrice.currencyCode,
        },
      }],
    }),
  });
});

Legacy pattern detected via: gtag\(\s*['"]event['"]\s*,\s*['"]conversion['"]