Im try to create application campaign using API but im facing this issue Please help me to solve this.
$campaign->setAdvertisingChannelType(AdvertisingChannelType::MULTI_CHANNEL);
$campaign->setAdvertisingChannelSubType(
AdvertisingChannelSubType::UNIVERSAL_APP_CAMPAIGN
);
$universalAppSetting = new UniversalAppCampaignSetting();
$universalAppSetting->setAppId('com.whatsapp');
$universalAppSetting->setAppVendor(
MobileApplicationVendor::VENDOR_GOOGLE_MARKET
);
$universalAppSetting->setDescription1('A cool puzzle game');
$universalAppSetting->setDescription2('Remove connected blocks');
$universalAppSetting->setDescription3('3 difficulty levels');
$universalAppSetting->setDescription4('4 colorful fun skins');
$universalAppSetting->setUniversalAppBiddingStrategyGoalType(
UniversalAppBiddingStrategyGoalType
::OPTIMIZE_FOR_INSTALL_CONVERSION_VOLUME
);