diff --git a/CheckoutExample/app/build.gradle b/CheckoutExample/app/build.gradle
index bc0bcee..7e4e2ce 100644
--- a/CheckoutExample/app/build.gradle
+++ b/CheckoutExample/app/build.gradle
@@ -26,9 +26,10 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'com.google.android.instantapps:instantapps:1.1.0'
 
+    implementation 'com.google.android.instantapps:instantapps:1.1.0'
     implementation 'com.google.code.gson:gson:2.8.6'
-    implementation group: 'com.android.volley', name: 'volley', version: '1.2.0'
-    implementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.4.10'
-    implementation "com.google.android.material:material:1.4.0-beta01"
+    implementation group: 'com.android.volley', name: 'volley', version: '1.2.1'
+    implementation "com.google.android.material:material:1.4.0"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
 
 }
diff --git a/CheckoutExample/app/src/main/AndroidManifest.xml b/CheckoutExample/app/src/main/AndroidManifest.xml
index 964d5ca..ad2ccc4 100644
--- a/CheckoutExample/app/src/main/AndroidManifest.xml
+++ b/CheckoutExample/app/src/main/AndroidManifest.xml
@@ -10,7 +10,7 @@
     <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
 
     <application
-        android:name="com.kount.api.analytics.AnalyticsApplication"
+        android:name="com.kount.api.analytics.KountAnalyticsApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
diff --git a/CheckoutExample/app/src/main/java/com/kount/checkoutexample/MainActivity.java b/CheckoutExample/app/src/main/java/com/kount/checkoutexample/MainActivity.java
index 5b6e872..b4486c6 100644
--- a/CheckoutExample/app/src/main/java/com/kount/checkoutexample/MainActivity.java
+++ b/CheckoutExample/app/src/main/java/com/kount/checkoutexample/MainActivity.java
@@ -1,6 +1,7 @@
 package com.kount.checkoutexample;
 
 import android.Manifest;
+import android.app.Activity;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.os.Build;
@@ -9,6 +10,7 @@
 import android.widget.Button;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
@@ -16,12 +18,14 @@
 import com.kount.api.analytics.AnalyticsCollector;
 
 import java.util.Locale;
+import java.util.UUID;
 
-public class MainActivity extends AppCompatActivity {
+public class MainActivity extends AppCompatActivity implements ActivityCompat.OnRequestPermissionsResultCallback {
 
-    final int PERMISSIONS_REQUEST_LOCATION = 0;
     static final int MERCHANT_ID = 999999; // Insert your valid merchant ID
     static final int ENVIRONMENT = AnalyticsCollector.ENVIRONMENT_TEST;//For production need to add AnalyticsCollector.ENVIRONMENT_PRODUCTION
+    static String deviceSessionID = "";
+    private String KEY_UUID = "UUID";
 
 
     @Override
@@ -29,15 +33,42 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         setTitle("Sample");
+        initView();
 
-        // Check for location permissions so the Data Collector can gather the device location
-        requestLocationPermissions();
-
+        //required section
         AnalyticsCollector.setMerchantId(MERCHANT_ID);
+        //end required section
+
         // This turns the alpha collections on(true)/off(false). It defaults to true
         AnalyticsCollector.collectAnalytics(true);
+
+        // For production you need to add AnalyticsCollector.ENVIRONMENT_PRODUCTION
         AnalyticsCollector.setEnvironment(ENVIRONMENT);
 
+        //Optional SessionID section
+        /** If you want to pass in a self generated sessionID(or one given to you by your servers)
+         * you can set it using colde like this. Otherwise the AnalyticsCollector will generate one
+         * for you.Make sure you set session id only one time in a user session.
+         * To do so set your sessionID below.*/
+        if (savedInstanceState == null) {
+            deviceSessionID = UUID.randomUUID().toString();
+            AnalyticsCollector.setSessionId(deviceSessionID);
+        } else {
+            deviceSessionID = savedInstanceState.getString(KEY_UUID);
+            AnalyticsCollector.setSessionId(deviceSessionID);
+        }
+        // END OPTIONAL SESSION_ID SECTION
+
+        //Request location permission for Android 6.0 & above
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
+            requestLocationPermissions(this);
+        else
+            AnalyticsCollector.collectDeviceDataForSession(this);
+
+
+    }
+
+    private void initView() {
         final TextView merchant = (TextView) findViewById(R.id.merchant);
         final TextView environment = (TextView) findViewById(R.id.environment);
         final Button checkoutButton = (Button) findViewById(R.id.checkoutButton);
@@ -63,22 +94,18 @@ public void onClick(View v) {
         });
     }
 
-    void requestLocationPermissions() {
+    void requestLocationPermissions(Activity activity) {
         final TextView location = (TextView) findViewById(R.id.location);
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
-                if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) {
-                    ActivityCompat.requestPermissions(this, new String[]{
-                            Manifest.permission.ACCESS_FINE_LOCATION}, PERMISSIONS_REQUEST_LOCATION);
-                } else {
-                    ActivityCompat.requestPermissions(this, new String[]{
-                            Manifest.permission.ACCESS_FINE_LOCATION}, PERMISSIONS_REQUEST_LOCATION);
-                }
+
+        if (ContextCompat.checkSelfPermission(activity, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
+            if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) {
+                ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, AnalyticsCollector.REQUEST_PERMISSION_LOCATION);
             } else {
-                location.setText("Allowed");
+                ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, AnalyticsCollector.REQUEST_PERMISSION_LOCATION);
             }
         } else {
-            // The permissions are allowed by default if installed on a device with a OS less than M
+            //This block executes when permission is already granted.
+            AnalyticsCollector.collectDeviceDataForSession(activity);
             location.setText("Allowed");
         }
     }
@@ -86,7 +113,9 @@ void requestLocationPermissions() {
     @Override
     public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
         final TextView location = (TextView) findViewById(R.id.location);
-        if (requestCode == PERMISSIONS_REQUEST_LOCATION) {
+        if (requestCode == AnalyticsCollector.REQUEST_PERMISSION_LOCATION) {
+            //this block executes when a user grant/deny the permission
+            AnalyticsCollector.collectDeviceDataForSession(this);
             if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                 location.setText("Allowed");
             } else {
@@ -95,4 +124,10 @@ public void onRequestPermissionsResult(int requestCode, String permissions[], in
         }
     }
 
+    @Override
+    protected void onSaveInstanceState(@NonNull Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putString(KEY_UUID, deviceSessionID);
+    }
+
 }
\ No newline at end of file
diff --git a/CheckoutExample/kotlinexample/build.gradle b/CheckoutExample/kotlinexample/build.gradle
index 3a47bea..d150c0f 100644
--- a/CheckoutExample/kotlinexample/build.gradle
+++ b/CheckoutExample/kotlinexample/build.gradle
@@ -35,9 +35,9 @@ dependencies {
     testImplementation 'junit:junit:4.13'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
-    implementation 'com.google.android.instantapps:instantapps:1.1.0'
 
+    implementation 'com.google.android.instantapps:instantapps:1.1.0'
     implementation 'com.google.code.gson:gson:2.8.6'
-    implementation group: 'com.android.volley', name: 'volley', version: '1.2.0'
-    implementation "com.google.android.material:material:1.4.0-beta01"
+    implementation group: 'com.android.volley', name: 'volley', version: '1.2.1'
+    implementation "com.google.android.material:material:1.4.0"
 }
diff --git a/CheckoutExample/kotlinexample/src/main/AndroidManifest.xml b/CheckoutExample/kotlinexample/src/main/AndroidManifest.xml
index efbb8af..bec5024 100644
--- a/CheckoutExample/kotlinexample/src/main/AndroidManifest.xml
+++ b/CheckoutExample/kotlinexample/src/main/AndroidManifest.xml
@@ -10,7 +10,7 @@
     <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
 
     <application
-        android:name="com.kount.api.analytics.AnalyticsApplication"
+        android:name="com.kount.api.analytics.KountAnalyticsApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
diff --git a/CheckoutExample/kotlinexample/src/main/java/com/kount/checkoutexample/kotlin/MainActivity.kt b/CheckoutExample/kotlinexample/src/main/java/com/kount/checkoutexample/kotlin/MainActivity.kt
index f11ddc9..d2a8244 100644
--- a/CheckoutExample/kotlinexample/src/main/java/com/kount/checkoutexample/kotlin/MainActivity.kt
+++ b/CheckoutExample/kotlinexample/src/main/java/com/kount/checkoutexample/kotlin/MainActivity.kt
@@ -1,6 +1,7 @@
 package com.kount.checkoutexample.kotlin
 
 import android.Manifest
+import android.app.Activity
 import android.content.Intent
 import android.content.pm.PackageManager
 import android.os.Build
@@ -10,11 +11,12 @@ import androidx.core.app.ActivityCompat
 import androidx.core.content.ContextCompat
 import com.kount.api.analytics.AnalyticsCollector
 import kotlinx.android.synthetic.main.activity_main.*
+import java.util.*
 
-class MainActivity : AppCompatActivity() {
-    private val PERMISSIONS_REQUEST_LOCATION = 0
+class MainActivity : AppCompatActivity(), ActivityCompat.OnRequestPermissionsResultCallback {
     private val ENVIRONMENT: Int = AnalyticsCollector.ENVIRONMENT_TEST//For production need to add AnalyticsCollector.ENVIRONMENT_PRODUCTION
-
+    var deviceSessionID: String? = ""
+    private val KEY_UUID = "UUID"
 
     companion object Cons {
         val MERCHANT_ID = 999999 // Insert your valid merchant ID
@@ -24,15 +26,40 @@ class MainActivity : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
         title = "Sample"
+        initView()
 
-        // Check for location permissions so the Data Collector can gather the device location
-        requestLocationPermissions()
-
+        //required section
         AnalyticsCollector.setMerchantId(MERCHANT_ID)
-        //This turns the alpha collections on(true)/off(false). It defaults to true
+        //end required section
+
+        // This turns the alpha collections on(true)/off(false). It defaults to true
         AnalyticsCollector.collectAnalytics(true)
+
+        // For production you need to add AnalyticsCollector.ENVIRONMENT_PRODUCTION
         AnalyticsCollector.setEnvironment(ENVIRONMENT)
 
+        //Optional SessionID section
+        /** If you want to pass in a self generated sessionID(or one given to you by your servers)
+         * you can set it using colde like this. Otherwise the AnalyticsCollector will generate one
+         * for you.Make sure you set session id only one time in a user session.
+         * To do so set your sessionID below. */
+        if (savedInstanceState == null) {
+            deviceSessionID = UUID.randomUUID().toString()
+            AnalyticsCollector.setSessionId(deviceSessionID!!)
+        } else {
+            deviceSessionID = savedInstanceState.getString(KEY_UUID)
+            AnalyticsCollector.setSessionId(deviceSessionID!!)
+        }
+        // END OPTIONAL SESSION_ID SECTION
+
+        //Request location permission for Android 6.0 & above
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
+            requestLocationPermissions(this)
+        else
+            AnalyticsCollector.collectDeviceDataForSession(this)
+    }
+
+    private fun initView() {
         merchant.text = "$MERCHANT_ID"
         when (ENVIRONMENT) {
             AnalyticsCollector.ENVIRONMENT_TEST -> environment.text = "Test"
@@ -44,29 +71,28 @@ class MainActivity : AppCompatActivity() {
         checkoutButton.setOnClickListener {
             startActivity(Intent(this@MainActivity, CollectionActivity::class.java))
         }
-
     }
 
-    private fun requestLocationPermissions() {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-            if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
-                if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) {
-                    ActivityCompat.requestPermissions(this, arrayOf(
-                            Manifest.permission.ACCESS_FINE_LOCATION), PERMISSIONS_REQUEST_LOCATION)
-                } else {
-                    ActivityCompat.requestPermissions(this, arrayOf(
-                            Manifest.permission.ACCESS_FINE_LOCATION), PERMISSIONS_REQUEST_LOCATION)
-                }
+    fun requestLocationPermissions(activity: Activity?) {
+        if (ContextCompat.checkSelfPermission(activity!!, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
+            if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)) {
+                ActivityCompat.requestPermissions(activity, arrayOf(
+                    Manifest.permission.ACCESS_FINE_LOCATION), AnalyticsCollector.REQUEST_PERMISSION_LOCATION)
             } else {
-                location.text = "Allowed"
+                ActivityCompat.requestPermissions(activity, arrayOf(
+                    Manifest.permission.ACCESS_FINE_LOCATION), AnalyticsCollector.REQUEST_PERMISSION_LOCATION)
             }
         } else {
+            //This block executes when permission is already granted.
+            AnalyticsCollector.collectDeviceDataForSession(activity)
             location.text = "Allowed"
         }
     }
 
     override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
-        if (requestCode == PERMISSIONS_REQUEST_LOCATION) {
+        if (requestCode == AnalyticsCollector.REQUEST_PERMISSION_LOCATION) {
+            //this block executes when a user grant/deny the permission
+            AnalyticsCollector.collectDeviceDataForSession(this)
             if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                 location.text = "Allowed"
             } else {
@@ -74,4 +100,9 @@ class MainActivity : AppCompatActivity() {
             }
         }
     }
+
+    override fun onSaveInstanceState(outState: Bundle) {
+        super.onSaveInstanceState(outState)
+        outState.putString(KEY_UUID, deviceSessionID)
+    }
 }
\ No newline at end of file
diff --git a/KountDataCollector/kount-data-collector-4.1.3.jar b/KountDataCollector/kount-data-collector-4.1.3.jar
deleted file mode 100644
index 7cebfab..0000000
Binary files a/KountDataCollector/kount-data-collector-4.1.3.jar and /dev/null differ
diff --git a/KountDataCollector/kount-data-collector-4.2.1.jar b/KountDataCollector/kount-data-collector-4.2.1.jar
new file mode 100644
index 0000000..24ea3e2
Binary files /dev/null and b/KountDataCollector/kount-data-collector-4.2.1.jar differ