Updated on 2026-08-14

app/src/main/java/com/tangem/tap/di/domain/WalletsDomainModule.kt

@@ -14,6 +14,7 @@ import com.tangem.domain.wallets.delegate.UserWalletsSyncDelegate
 import com.tangem.domain.wallets.derivations.DerivationsRepository
 import com.tangem.domain.wallets.hot.HotWalletAccessor
 import com.tangem.domain.wallets.repository.WalletNamesMigrationRepository
+import com.tangem.domain.wallets.repository.WalletsPromoRepository
 import com.tangem.domain.wallets.repository.WalletsRepository
 import com.tangem.domain.wallets.usecase.*
 import com.tangem.domain.yield.supply.YieldSupplyRepository
@@ -105,8 +106,10 @@ internal object WalletsDomainModule {
 
     @Provides
     @Singleton
-    fun providesOpenBuyTangemCardUseCase(): GenerateBuyTangemCardLinkUseCase {
+    fun providesOpenBuyTangemCardUseCase(
-        return GenerateBuyTangemCardLinkUseCase()
+        walletsPromoRepository: WalletsPromoRepository,
+    ): GenerateBuyTangemCardLinkUseCase {
+        return GenerateBuyTangemCardLinkUseCase(walletsPromoRepository)
     }
 
     @Provides

common/src/main/kotlin/com/tangem/common/TangemSiteUrlBuilder.kt

@@ -17,6 +17,10 @@ object TangemSiteUrlBuilder {
         return "utm_source=tangem-app&utm_medium=app$utmCampaignPart$utmContent$appInstanceIdPart"
     }
 
+    fun getRefCodeTag(refCode: String?): String {
+        return refCode?.let { "promocode=$it" }.orEmpty()
+    }
+
     suspend fun url(path: String, campaign: String): String {
         val normalizedPath = path.trim('/')
         return "https://tangem.com/$normalizedPath?${getUtmTags(campaign)}"

data/wallets/src/main/java/com/tangem/data/wallets/DefaultWalletsPromoRepository.kt

@@ -6,6 +6,7 @@ import com.squareup.moshi.JsonClass
 import com.tangem.datasource.api.common.response.ApiResponse
 import com.tangem.datasource.api.tangemTech.TangemTechApi
 import com.tangem.datasource.api.tangemTech.models.BindWalletsByReferralCodeBody
+import com.tangem.datasource.local.appsflyer.AppsFlyerStore
 import com.tangem.datasource.local.preferences.AppPreferencesStore
 import com.tangem.datasource.local.preferences.utils.getObjectSyncOrNull
 import com.tangem.datasource.local.preferences.utils.storeObject
@@ -21,6 +22,7 @@ internal class DefaultWalletsPromoRepository(
     private val tangemTechApi: TangemTechApi,
     private val userWalletsListRepository: UserWalletsListRepository,
     private val dispatchers: CoroutineDispatcherProvider,
+    private val appsFlyerStore: AppsFlyerStore,
 ) : WalletsPromoRepository {
 
     override suspend fun bindRefcodeWithWallets(conversionData: AppsFlyerConversionData) = withContext(dispatchers.io) {
@@ -49,6 +51,10 @@ internal class DefaultWalletsPromoRepository(
         }
     }
 
+    override suspend fun getReferralCodeIfExists(): String? {
+        return appsFlyerStore.get()?.refcode
+    }
+
     private suspend fun getSavedBindingData(): ReferralWalletsBindingData? {
         return appPreferencesStore.getObjectSyncOrNull(key = REFERRAL_WALLETS_BINDING_DATA_KEY)
     }

data/wallets/src/main/java/com/tangem/data/wallets/di/WalletsDataModule.kt

@@ -76,12 +76,14 @@ internal object WalletsDataModule {
         tangemTechApi: TangemTechApi,
         userWalletsListRepository: UserWalletsListRepository,
         dispatchers: CoroutineDispatcherProvider,
+        appsFlyerStore: AppsFlyerStore,
     ): WalletsPromoRepository {
         return DefaultWalletsPromoRepository(
             appPreferencesStore = appPreferencesStore,
             tangemTechApi = tangemTechApi,
             userWalletsListRepository = userWalletsListRepository,
             dispatchers = dispatchers,
+            appsFlyerStore = appsFlyerStore,
         )
     }
 }

domain/wallets/src/main/java/com/tangem/domain/wallets/repository/WalletsPromoRepository.kt

@@ -7,4 +7,6 @@ interface WalletsPromoRepository {
     suspend fun bindRefcodeWithWallets(conversionData: AppsFlyerConversionData)
 
     suspend fun retryBindRefcodeWithWallets()
+
+    suspend fun getReferralCodeIfExists(): String?
 }

domain/wallets/src/main/java/com/tangem/domain/wallets/usecase/GenerateBuyTangemCardLinkUseCase.kt

@@ -1,18 +1,23 @@
 package com.tangem.domain.wallets.usecase
 
 import com.tangem.common.TangemSiteUrlBuilder
+import com.tangem.domain.wallets.repository.WalletsPromoRepository
 import java.util.Locale
 
-class GenerateBuyTangemCardLinkUseCase {
+class GenerateBuyTangemCardLinkUseCase(
+    private val walletsPromoRepository: WalletsPromoRepository,
+) {
 
     suspend operator fun invoke(source: Source): String {
         return invoke(source.utmCampaign)
     }
 
     suspend operator fun invoke(utmCampaign: String?): String {
+        val refCode = walletsPromoRepository.getReferralCodeIfExists()
+        val refCodeTag = TangemSiteUrlBuilder.getRefCodeTag(refCode)
         val langCode = Locale.getDefault().language
         val utmTags = TangemSiteUrlBuilder.getUtmTags(utmCampaign)
-        return "https://buy.tangem.com/$langCode?$utmTags"
+        return "https://buy.tangem.com/$langCode?$utmTags&$refCodeTag"
     }
 
     enum class Source(val utmCampaign: String) {

features/details/impl/build.gradle.kts

@@ -31,6 +31,7 @@ dependencies {
     implementation(projects.core.analytics.models)
     implementation(projects.common.routing)
     implementation(projects.common.ui)
+    implementation(projects.core.datasource)
 
     /* Project - Domain */
     implementation(projects.domain.models)