logCrossPromotionImpression method
To attribute an impression use the following API call. Make sure to use the promoted App ID as it appears within the AppsFlyer dashboard.
Implementation
void logCrossPromotionImpression(String appId, String campaign, Map? data) {
_methodChannel.invokeMethod("logCrossPromotionImpression",
{'appId': appId, 'campaign': campaign, 'data': data});
}