diff --git a/gradle.properties b/gradle.properties
index 979420a..57853fc 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -27,4 +27,4 @@ POM_SETTING_DEVELOPER_ID=opensrp
 POM_SETTING_DEVELOPER_NAME=OpenSRP Onadev
 POM_SETTING_NAME=Android Peer-to-Peer Sync
 POM_SETTING_ARTIFACT_ID=android-p2p-sync
-POM_SETTING_PACKAGING=aar
+POM_SETTING_PACKAGING=aar
\ No newline at end of file
diff --git a/p2p-sync/src/main/java/org/smartregister/p2p/sync/SyncSenderHandler.java b/p2p-sync/src/main/java/org/smartregister/p2p/sync/SyncSenderHandler.java
index 1a26e9c..2c42d77 100644
--- a/p2p-sync/src/main/java/org/smartregister/p2p/sync/SyncSenderHandler.java
+++ b/p2p-sync/src/main/java/org/smartregister/p2p/sync/SyncSenderHandler.java
@@ -1,5 +1,7 @@
 package org.smartregister.p2p.sync;
 
+import android.os.Handler;
+import android.os.Looper;
 import android.os.ParcelFileDescriptor;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
@@ -55,12 +57,15 @@ public class SyncSenderHandler {
     private PayloadRetry payloadRetry;
     private SyncPackageManifest syncPackageManifest;
 
+    private Handler uiHandler;
+
     public SyncSenderHandler(@NonNull P2pModeSelectContract.SenderPresenter presenter, @NonNull TreeSet<DataType> dataSyncOrder
             , @Nullable List<P2pReceivedHistory> receivedHistory) {
         this.presenter = presenter;
         this.dataSyncOrder = dataSyncOrder;
         this.receivedHistory = receivedHistory;
         this.batchSize = P2PLibrary.getInstance().getBatchSize();
+        this.uiHandler = new Handler(Looper.getMainLooper());
     }
 
     private void generateRecordsToSend() {
@@ -261,12 +266,23 @@ public void run() {
                                 outputStream.flush();
                                 outputStream.close();
 
-                            } catch (IOException e) {
+                            } catch (final IOException e) {
                                 Timber.e(e, "Error occurred trying to read bytes into payload pipe");
-                                presenter.errorOccurredSync(e);
+
+                                uiHandler.post(new Runnable() {
+                                    @Override
+                                    public void run() {
+                                        presenter.errorOccurredSync(e);
+                                    }
+                                });
                             }
                         } else {
-                            presenter.errorOccurredSync(new Exception("Could not find the payload pipe!"));
+                            uiHandler.post(new Runnable() {
+                                @Override
+                                public void run() {
+                                    presenter.errorOccurredSync(new Exception("Could not find the payload pipe!"));
+                                }
+                            });
                         }
                     }
                 }
diff --git a/sample/src/main/AndroidManifest.xml b/sample/src/main/AndroidManifest.xml
index 56ab6e0..2f19613 100644
--- a/sample/src/main/AndroidManifest.xml
+++ b/sample/src/main/AndroidManifest.xml
@@ -3,6 +3,9 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.smartregister.p2p.sample">
 
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
diff --git a/sample/src/main/java/org/smartregister/p2p/sample/MainActivity.java b/sample/src/main/java/org/smartregister/p2p/sample/MainActivity.java
index d92a183..7ff84c6 100644
--- a/sample/src/main/java/org/smartregister/p2p/sample/MainActivity.java
+++ b/sample/src/main/java/org/smartregister/p2p/sample/MainActivity.java
@@ -1,18 +1,48 @@
 package org.smartregister.p2p.sample;
 
+import android.Manifest;
 import android.content.Intent;
-import android.support.v7.app.AppCompatActivity;
+import android.content.pm.PackageManager;
 import android.os.Bundle;
+import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.ContextCompat;
+import android.support.v7.app.AppCompatActivity;
 
 import org.smartregister.p2p.activity.P2pModeSelectActivity;
 
 public class MainActivity extends AppCompatActivity {
 
+    private String[] permissions = new String[] {Manifest.permission.READ_EXTERNAL_STORAGE
+            , Manifest.permission.WRITE_EXTERNAL_STORAGE};
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+
+        requestPermissions();
+    }
+
+    private void requestPermissions() {
+        if (!arePermissionsGranted()) {
+            ActivityCompat.requestPermissions(this, permissions, 8348);
+        } else {
+            startActivity(new Intent(this, P2pModeSelectActivity.class));
+        }
+    }
+
+    private boolean arePermissionsGranted() {
+        for (String permission: permissions) {
+            if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
+                return false;
+            }
+        }
 
-        startActivity(new Intent(this, P2pModeSelectActivity.class));
+        return true;
     }
 }
diff --git a/sample/src/main/java/org/smartregister/p2p/sample/dao/SampleSenderDao.java b/sample/src/main/java/org/smartregister/p2p/sample/dao/SampleSenderDao.java
index e0c52da..c04e1f1 100644
--- a/sample/src/main/java/org/smartregister/p2p/sample/dao/SampleSenderDao.java
+++ b/sample/src/main/java/org/smartregister/p2p/sample/dao/SampleSenderDao.java
@@ -37,7 +37,7 @@ public SampleSenderDao() {
         nameRecords.add("Chris Wamaitha");
 
         for (int i = 0; i < 200; i++) {
-            personalDetailsRecords.add(generateRandomString(50000));
+            personalDetailsRecords.add(generateRandomString(10000));
         }
     }