GA4 - app - flutter - account_topup

// account_topup
await FirebaseAnalytics.instance.logEvent(
  name: "account_topup",
  parameters: {
    "topup_value": 1200,
    "currency": RSD,
    "business_type": b2c,  // b2b or b2c
    "page_category": knjige,  // knjige, nekretnine, posao, usluge, etc, ostale stranice
  },
);