diff --git a/CRM/Contribute/BAO/Contribution.php b/CRM/Contribute/BAO/Contribution.php
index 0e235f5f1104..c94874f3cfb2 100644
--- a/CRM/Contribute/BAO/Contribution.php
+++ b/CRM/Contribute/BAO/Contribution.php
@@ -1916,6 +1916,9 @@ public static function transitionComponents($params, $processContributionObject
             //update related Memberships.
             CRM_Member_BAO_Membership::updateRelatedMemberships($membership->id, $formattedParams);
 
+            //CRM-19678: No Membership Renewal Activity is created when a Pay Later is set to Completed
+            CRM_Activity_BAO_Activity::addActivity($membership, 'Membership Renewal', $membership->contact_id);
+
             $updateResult['membership_end_date'] = CRM_Utils_Date::customFormat($dates['end_date'],
               '%B %E%f, %Y'
             );
diff --git a/CRM/Contribute/Form/Contribution.php b/CRM/Contribute/Form/Contribution.php
index 31667ac21e03..757073e6fec9 100644
--- a/CRM/Contribute/Form/Contribution.php
+++ b/CRM/Contribute/Form/Contribution.php
@@ -1404,6 +1404,7 @@ public function testSubmit($params, $action, $creditCardMode = NULL) {
         'id' => $params['id'],
       ));
       $this->_id = $params['id'];
+      $this->_values = $existingContribution;
     }
     else {
       $existingContribution = array();
diff --git a/tests/phpunit/CiviTest/CiviUnitTestCase.php b/tests/phpunit/CiviTest/CiviUnitTestCase.php
index 1fd3c05d1d77..fddc7eff54f9 100644
--- a/tests/phpunit/CiviTest/CiviUnitTestCase.php
+++ b/tests/phpunit/CiviTest/CiviUnitTestCase.php
@@ -1362,7 +1362,7 @@ public function participantCreate($params) {
    * @return int
    *   Id Payment Processor
    */
-  public function processorCreate() {
+  public function processorCreate($params = array()) {
     $processorParams = array(
       'domain_id' => 1,
       'name' => 'Dummy',
@@ -1377,6 +1377,7 @@ public function processorCreate() {
       'sequential' => 1,
       'payment_instrument_id' => 'Debit Card',
     );
+    $processorParams = array_merge($processorParams, $params);
     $processor = $this->callAPISuccess('PaymentProcessor', 'create', $processorParams);
     return $processor['id'];
   }
diff --git a/tests/phpunit/api/v3/ContributionTest.php b/tests/phpunit/api/v3/ContributionTest.php
index 440e8506b8ee..dc17db24c7fa 100644
--- a/tests/phpunit/api/v3/ContributionTest.php
+++ b/tests/phpunit/api/v3/ContributionTest.php
@@ -2497,6 +2497,65 @@ public function testCompleteTransactionMembershipPriceSet() {
     $this->cleanUpAfterPriceSets();
   }
 
+  /**
+   * Test if renewal activity is create after changing Pending contribution to Completed via offline
+   */
+  public function testPendingToCompleteContribution() {
+    $contributionPage = $this->createPriceSetWithPage('membership');
+    $stateOfGrace = $this->callAPISuccess('MembershipStatus', 'getvalue', array(
+      'name' => 'Grace',
+      'return' => 'id')
+    );
+    $this->setUpPendingContribution($this->_ids['price_field_value'][0]);
+    $this->callAPISuccess('membership', 'getsingle', array('id' => $this->_ids['membership']));
+
+    // change pending contribution to completed
+    $form = new CRM_Contribute_Form_Contribution();
+    $error = FALSE;
+    $form->_params = array(
+      'id' => $this->_ids['contribution'],
+      'total_amount' => 20,
+      'net_amount' => 20,
+      'fee_amount' => 0,
+      'financial_type_id' => 1,
+      'receive_date' => '04/21/2015',
+      'receive_date_time' => '11:27PM',
+      'contact_id' => $this->_individualId,
+      'contribution_status_id' => 1,
+      'billing_middle_name' => '',
+      'billing_last_name' => 'Adams',
+      'billing_street_address-5' => '790L Lincoln St S',
+      'billing_city-5' => 'Maryknoll',
+      'billing_state_province_id-5' => 1031,
+      'billing_postal_code-5' => 10545,
+      'billing_country_id-5' => 1228,
+      'frequency_interval' => 1,
+      'frequency_unit' => 'month',
+      'installments' => '',
+      'hidden_AdditionalDetail' => 1,
+      'hidden_Premium' => 1,
+      'from_email_address' => '"civi45" <civi45@civicrm.com>',
+      'receipt_date' => '',
+      'receipt_date_time' => '',
+      'payment_processor_id' => $this->paymentProcessorID,
+      'currency' => 'USD',
+      'contribution_page_id' => $this->_ids['contribution_page'],
+      'contribution_mode' => 'membership',
+      'source' => 'Membership Signup and Renewal',
+    );
+    try {
+      $form->testSubmit($form->_params, CRM_Core_Action::UPDATE);
+    }
+    catch (Civi\Payment\Exception\PaymentProcessorException $e) {
+      $error = TRUE;
+    }
+    $activity = $this->callAPISuccess('Activity', 'get', array(
+      'activity_type_id' => 'Membership Renewal',
+      'source_record_id' => $this->_ids['contribution'],
+    ));
+    $this->assertEquals(1, $activity['count']);
+  }
+
   /**
    * Test membership is renewed when transaction completed.
    */
@@ -2596,7 +2655,7 @@ public function setUpPendingContribution($priceFieldValueID) {
       'domain_id' => 1,
       'contact_id' => $contactID,
       'receive_date' => date('Ymd'),
-      'total_amount' => 100.00,
+      'total_amount' => 20.00,
       'financial_type_id' => 1,
       'payment_instrument_id' => 'Credit Card',
       'non_deductible_amount' => 10.00,