diff --git a/.github/workflows/ci-release.yml b/.github/workflows/ci-release.yml
index b92a80cd..6fd77809 100644
--- a/.github/workflows/ci-release.yml
+++ b/.github/workflows/ci-release.yml
@@ -37,7 +37,7 @@ jobs:
     - name: build
       working-directory: ./dgca-verifier-app-android
       run: |-
-        ./gradlew --no-daemon build
+        ./gradlew --no-daemon build -PCONFIG_FILE_NAME="verifier-context.jsonc"
     - name: sign-tst
       working-directory: ./dgca-verifier-app-android
       run: |-
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 66fcf14a..1e601981 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -39,4 +39,4 @@ jobs:
     - name: build
       working-directory: ./dgca-verifier-app-android
       run: |-
-        ./gradlew --no-daemon build
+        ./gradlew --no-daemon build -PCONFIG_FILE_NAME="verifier-context.jsonc"
diff --git a/README.md b/README.md
index f79c93a4..a03f12ec 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,11 @@ android-app
 |___dgc-certlogic-android
 ```
 
+- To build project - it's required to add config json file to application assets folder. Structure of the file should be similar to:
+'app/src/acc/assets/verifier-context.jsonc' or 'app/src/tst/assets/verifier-context.jsonc', depending on chosen flavor.
+After related file has been added - it's name should be passed via gradle properties:
+gradlew -PCONFIG_FILE_NAME="config.json"
+
 #### Android Studio based build
 
 This project uses the Gradle build system. To build this project, use the `gradlew build` command or use "Run" in Android Studio.
diff --git a/app/build.gradle b/app/build.gradle
index 81007754..0ef8e255 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -41,6 +41,11 @@ android {
         versionCode Config.versionCode
         versionName Config.versionName
 
+        // It's required to provide config json files, and path to it.
+        // Examples based on different flavors could be found here: 'app/src/acc/assets/verifier-context.jsonc' or 'app/src/tst/assets/verifier-context.jsonc'
+
+        buildConfigField "String", "CONFIG_FILE_NAME", "\"$CONFIG_FILE_NAME\""
+
         testInstrumentationRunner Config.androidTestInstrumentation
     }
 
diff --git a/app/src/main/java/dgca/verifier/app/android/DgcaApplication.kt b/app/src/main/java/dgca/verifier/app/android/DgcaApplication.kt
index ac066d99..bd7d6760 100644
--- a/app/src/main/java/dgca/verifier/app/android/DgcaApplication.kt
+++ b/app/src/main/java/dgca/verifier/app/android/DgcaApplication.kt
@@ -26,8 +26,12 @@ import android.app.Application
 import androidx.hilt.work.HiltWorkerFactory
 import androidx.work.*
 import dagger.hilt.android.HiltAndroidApp
+import dgca.verifier.app.android.data.ConfigRepository
 import dgca.verifier.app.android.worker.*
+import kotlinx.coroutines.GlobalScope
+import kotlinx.coroutines.launch
 import timber.log.Timber
+import java.io.FileNotFoundException
 import java.util.concurrent.TimeUnit
 import javax.inject.Inject
 import kotlin.reflect.KClass
@@ -38,6 +42,9 @@ class DgcaApplication : Application(), Configuration.Provider {
     @Inject
     lateinit var workerFactory: HiltWorkerFactory
 
+    @Inject
+    lateinit var configDataSource: ConfigRepository
+
     override fun getWorkManagerConfiguration(): Configuration {
         return Configuration.Builder()
             .setWorkerFactory(workerFactory)
@@ -50,6 +57,14 @@ class DgcaApplication : Application(), Configuration.Provider {
             Timber.plant(Timber.DebugTree())
         }
 
+        GlobalScope.launch {
+            try {
+                configDataSource.local().getConfig()
+            } catch (fileNotFoundException: FileNotFoundException) {
+                throw IllegalStateException("It's required to provide config json files. As an example may be used 'app/src/acc/assets/verifier-context.jsonc' or 'app/src/tst/assets/verifier-context.jsonc' files")
+            }
+        }
+
         WorkManager.getInstance(this).apply {
             schedulePeriodicWorker<ConfigsLoadingWorker>(WORKER_CONFIGS)
             schedulePeriodicWorker<RulesLoadWorker>(WORKER_RULES)
diff --git a/app/src/main/java/dgca/verifier/app/android/data/local/LocalConfigDataSource.kt b/app/src/main/java/dgca/verifier/app/android/data/local/LocalConfigDataSource.kt
index b86d56a3..da6358ef 100644
--- a/app/src/main/java/dgca/verifier/app/android/data/local/LocalConfigDataSource.kt
+++ b/app/src/main/java/dgca/verifier/app/android/data/local/LocalConfigDataSource.kt
@@ -25,6 +25,7 @@ package dgca.verifier.app.android.data.local
 import android.content.Context
 import com.fasterxml.jackson.databind.ObjectMapper
 import dagger.hilt.android.qualifiers.ApplicationContext
+import dgca.verifier.app.android.BuildConfig
 import dgca.verifier.app.android.data.Config
 import timber.log.Timber
 import java.io.*
@@ -38,7 +39,6 @@ class LocalConfigDataSource @Inject constructor(
     private lateinit var config: Config
 
     companion object {
-        const val DEFAULT_CONFIG_FILE = "verifier-context.jsonc"
         const val CONFIG_FILE = "config.json"
     }
 
@@ -76,7 +76,7 @@ class LocalConfigDataSource @Inject constructor(
     }
 
     private fun defaultConfig(): Config =
-        context.assets.open(DEFAULT_CONFIG_FILE).bufferedReader().use {
+        context.assets.open(BuildConfig.CONFIG_FILE_NAME).bufferedReader().use {
             objectMapper.readValue(it.readText(), Config::class.java)
         }
 }
\ No newline at end of file