diff --git a/lms/djangoapps/instructor/tests/test_ecommerce.py b/lms/djangoapps/instructor/tests/test_ecommerce.py
index 8cb4b1435a..dcfcc253b8 100644
--- a/lms/djangoapps/instructor/tests/test_ecommerce.py
+++ b/lms/djangoapps/instructor/tests/test_ecommerce.py
@@ -84,7 +84,7 @@ class TestECommerceDashboardViews(ModuleStoreTestCase):
 
         data = {
             'code': 'A2314', 'course_id': self.course.id.to_deprecated_string(),
-            'description': 'asdsasda', 'created_by': self.instructor, 'discount': 111
+            'description': 'asdsasda', 'created_by': self.instructor, 'discount': 99
         }
         response = self.client.post(add_coupon_url, data)
         self.assertTrue("coupon with the coupon code ({code}) already exist".format(code='A2314') in response.content)
@@ -94,6 +94,17 @@ class TestECommerceDashboardViews(ModuleStoreTestCase):
         self.assertTrue('<td>A2314</td>' in response.content)
         self.assertFalse('<td>111</td>' in response.content)
 
+        data = {
+            'code': 'A2345314', 'course_id': self.course.id.to_deprecated_string(),
+            'description': 'asdsasda', 'created_by': self.instructor, 'discount': 199
+        }
+        response = self.client.post(add_coupon_url, data)
+        self.assertTrue("Please Enter the Coupon Discount Value Less than or Equal to 100" in response.content)
+
+        data['discount'] = '25%'
+        response = self.client.post(add_coupon_url, data=data)
+        self.assertTrue('Please Enter the Integer Value for Coupon Discount' in response.content)
+
     def test_delete_coupon(self):
         """
         Test Delete Coupon Scenarios. Handle all the HttpResponses return by remove_coupon view
@@ -179,6 +190,15 @@ class TestECommerceDashboardViews(ModuleStoreTestCase):
         response = self.client.post(update_coupon_url, data=data)
         self.assertTrue('coupon with the coupon id ({coupon_id}) DoesNotExist'.format(coupon_id=1000) in response.content)
 
+        data['coupon_id'] = coupon.id
+        data['discount'] = 123
+        response = self.client.post(update_coupon_url, data=data)
+        self.assertTrue('Please Enter the Coupon Discount Value Less than or Equal to 100' in response.content)
+
+        data['discount'] = '25%'
+        response = self.client.post(update_coupon_url, data=data)
+        self.assertTrue('Please Enter the Integer Value for Coupon Discount' in response.content)
+
         data['coupon_id'] = ''  # Coupon id is not provided
         response = self.client.post(update_coupon_url, data=data)
         self.assertTrue('coupon id not found' in response.content)
diff --git a/lms/djangoapps/instructor/views/coupons.py b/lms/djangoapps/instructor/views/coupons.py
index 7251e470c5..2b0650d31b 100644
--- a/lms/djangoapps/instructor/views/coupons.py
+++ b/lms/djangoapps/instructor/views/coupons.py
@@ -61,7 +61,12 @@ def add_coupon(request, course_id):  # pylint: disable=W0613
 
     description = request.POST.get('description')
     course_id = request.POST.get('course_id')
-    discount = request.POST.get('discount')
+    try:
+        discount = int(request.POST.get('discount'))
+    except ValueError:
+        return HttpResponseNotFound(_("Please Enter the Integer Value for Coupon Discount"))
+    if discount > 100:
+        return HttpResponseNotFound(_("Please Enter the Coupon Discount Value Less than or Equal to 100"))
     coupon = Coupon(
         code=code, description=description, course_id=course_id,
         percentage_discount=discount, created_by_id=request.user.id
@@ -93,7 +98,12 @@ def update_coupon(request, course_id):  # pylint: disable=W0613
 
     description = request.POST.get('description')
     course_id = request.POST.get('course_id')
-    discount = request.POST.get('discount')
+    try:
+        discount = int(request.POST.get('discount'))
+    except ValueError:
+        return HttpResponseNotFound(_("Please Enter the Integer Value for Coupon Discount"))
+    if discount > 100:
+        return HttpResponseNotFound(_("Please Enter the Coupon Discount Value Less than or Equal to 100"))
     coupon.code = code
     coupon.description = description
     coupon.course_id = course_id
diff --git a/lms/templates/instructor/instructor_dashboard_2/add_coupon_modal.html b/lms/templates/instructor/instructor_dashboard_2/add_coupon_modal.html
index 8befb90f10..c832d1f94d 100644
--- a/lms/templates/instructor/instructor_dashboard_2/add_coupon_modal.html
+++ b/lms/templates/instructor/instructor_dashboard_2/add_coupon_modal.html
@@ -34,7 +34,7 @@
             </li>
             <li class="field required text" id="add-coupon-modal-field-discount">
               <label for="coupon_discount" class="required text">${_("Percentage Discount")}</label>
-              <input class="field required" id="coupon_discount" type="text" name="discount" value="" maxlength="5"
+              <input class="field required" id="coupon_discount" type="text" name="discount" value="" maxlength="3"
                      aria-required="true"/>
             </li>
 
diff --git a/lms/templates/instructor/instructor_dashboard_2/e-commerce.html b/lms/templates/instructor/instructor_dashboard_2/e-commerce.html
index 90ec854828..061ca5dcac 100644
--- a/lms/templates/instructor/instructor_dashboard_2/e-commerce.html
+++ b/lms/templates/instructor/instructor_dashboard_2/e-commerce.html
@@ -142,6 +142,12 @@
         $("#update_coupon_button").removeAttr('disabled');
         return false;
       }
+      if (parseInt(coupon_discount) > 100) {
+        $('#edit_coupon_form #coupon_form_error').attr('style', 'display: block !important');
+        $('#edit_coupon_form #coupon_form_error').text("${_('Please Enter the Coupon Discount Value Less than or Equal to 100')}");
+        $("#update_coupon_button").removeAttr('disabled');
+        return false;
+      }
       if (!$.isNumeric(coupon_discount)) {
         $('#edit_coupon_form #coupon_form_error').attr('style', 'display: block !important');
         $('#edit_coupon_form #coupon_form_error').text("${_('Please Enter the Coupon Discount Value Greater than 0')}");
@@ -171,6 +177,12 @@
         $("#add_coupon_button").removeAttr('disabled');
         return false;
       }
+      if (parseInt(coupon_discount) > 100) {
+        $('#add_coupon_form #coupon_form_error').attr('style', 'display: block !important');
+        $('#add_coupon_form #coupon_form_error').text("${_('Please Enter the Coupon Discount Value Less than or Equal to 100')}");
+        $("#add_coupon_button").removeAttr('disabled');
+        return false;
+      }
       if (!$.isNumeric(coupon_discount)) {
         $("#add_coupon_button").removeAttr('disabled');
         $('#add_coupon_form #coupon_form_error').attr('style', 'display: block !important');
diff --git a/lms/templates/instructor/instructor_dashboard_2/edit_coupon_modal.html b/lms/templates/instructor/instructor_dashboard_2/edit_coupon_modal.html
index 2d292abf12..11bd44a2a1 100644
--- a/lms/templates/instructor/instructor_dashboard_2/edit_coupon_modal.html
+++ b/lms/templates/instructor/instructor_dashboard_2/edit_coupon_modal.html
@@ -34,7 +34,7 @@
             </li>
             <li class="field required text" id="edit-coupon-modal-field-discount">
               <label for="edit_coupon_discount" class="required">${_("Percentage Discount")}</label>
-              <input class="field" id="edit_coupon_discount" type="text" name="discount" value="" maxlength="5"
+              <input class="field" id="edit_coupon_discount" type="text" name="discount" value="" maxlength="3"
                      aria-required="true"/>
             </li>