diff --git a/ecommerce/coupons/views.py b/ecommerce/coupons/views.py
index 848654f939b..cf739612ce0 100644
--- a/ecommerce/coupons/views.py
+++ b/ecommerce/coupons/views.py
@@ -3,6 +3,7 @@
 import logging
 
 import unicodecsv as csv
+import waffle
 from django.contrib import messages
 from django.contrib.auth.decorators import login_required
 from django.core.exceptions import PermissionDenied
@@ -16,6 +17,7 @@
 from django.views.generic import TemplateView, View
 from edx_rest_framework_extensions.permissions import LoginRedirectIfUnauthenticated
 from oscar.core.loading import get_class, get_model
+from rest_framework import status
 from rest_framework.views import APIView
 
 from ecommerce.core.url_utils import absolute_redirect, get_ecommerce_url, get_lms_course_about_url
@@ -158,6 +160,18 @@ def get(self, request):  # pylint: disable=too-many-statements
         then applies the voucher and if the basket total is FREE places the order and
         enrolls the user in the course.
         """
+        logger.info(
+            f"[CouponRedeemView] Request for user: {request.user.username}, "
+            f"referer: {request.META.get('HTTP_REFERER')}, "
+            f"client IP: {request.META.get('REMOTE_ADDR')}, "
+            f"and params: {request.get_full_path()}"
+        )
+
+        if waffle.flag_is_active(request, 'disable_ecommerce_service'):
+            return HttpResponse(
+                'Service unavailable', status=status.HTTP_503_SERVICE_UNAVAILABLE
+            )
+
         template_name = 'coupons/_offer_error.html'
         code = request.GET.get('code')
         sku = request.GET.get('sku')
diff --git a/ecommerce/extensions/basket/views.py b/ecommerce/extensions/basket/views.py
index dbfec7e75fc..66cfe363055 100644
--- a/ecommerce/extensions/basket/views.py
+++ b/ecommerce/extensions/basket/views.py
@@ -10,7 +10,7 @@
 
 import dateutil.parser
 import waffle
-from django.http import HttpResponseBadRequest, HttpResponseRedirect
+from django.http import HttpResponse, HttpResponseBadRequest, HttpResponseRedirect
 from django.shortcuts import render
 from django.urls import reverse
 from django.utils.html import escape
@@ -24,6 +24,7 @@
 from oscar.core.prices import Price
 from requests.exceptions import ConnectionError as ReqConnectionError
 from requests.exceptions import RequestException, Timeout
+from rest_framework import status as response_status_codes
 from rest_framework.permissions import IsAuthenticated
 from rest_framework.response import Response
 from rest_framework.views import APIView
@@ -417,6 +418,18 @@ class BasketAddItemsView(BasketLogicMixin, APIView):
     permission_classes = (LoginRedirectIfUnauthenticated,)
 
     def get(self, request):
+        logger.info(
+            f"[BasketAddItemsView] Request for user: {request.user.username}, "
+            f"referer: {request.META.get('HTTP_REFERER')}, "
+            f"client IP: {request.META.get('REMOTE_ADDR')}, "
+            f"and params: {request.get_full_path()}"
+        )
+
+        if waffle.flag_is_active(request, 'disable_ecommerce_service'):
+            return HttpResponse(
+                'Service unavailable', status=response_status_codes.HTTP_503_SERVICE_UNAVAILABLE
+            )
+
         # Send time when this view is called - https://openedx.atlassian.net/browse/REV-984
         properties = {'emitted_at': time.time()}
         track_segment_event(request.site, request.user, 'Basket Add Items View Called', properties)
@@ -818,6 +831,19 @@ class PaymentApiView(PaymentApiLogicMixin, APIView):
     permission_classes = (IsAuthenticated,)
 
     def get(self, request):  # pylint: disable=unused-argument
+        logger.info(
+            f"[PaymentApiView] Request for user: {request.user.username}, "
+            f"referer: {request.META.get('HTTP_REFERER')}, "
+            f"client IP: {request.META.get('REMOTE_ADDR')}, "
+            f"and params: {request.get_full_path()}"
+        )
+
+        if waffle.flag_is_active(request, 'disable_ecommerce_service'):
+            return JsonResponse(
+                {'error': 'Service unavailable'},
+                status=response_status_codes.HTTP_503_SERVICE_UNAVAILABLE
+            )
+
         basket = request.basket
 
         try:
diff --git a/ecommerce/extensions/iap/api/v1/views.py b/ecommerce/extensions/iap/api/v1/views.py
index 87033d4a4a6..c8cd4b33293 100644
--- a/ecommerce/extensions/iap/api/v1/views.py
+++ b/ecommerce/extensions/iap/api/v1/views.py
@@ -111,6 +111,18 @@ class MobileBasketAddItemsView(BasketLogicMixin, APIView):
     permission_classes = (LoginRedirectIfUnauthenticated,)
 
     def get(self, request):
+        logger.info(
+            f"[MobileBasketAddItemsView] Request for user: {request.user.username}, "
+            f"referer: {request.META.get('HTTP_REFERER')}, "
+            f"client IP: {request.META.get('REMOTE_ADDR')}, "
+            f"and params: {request.get_full_path()}"
+        )
+
+        if waffle.flag_is_active(request, 'disable_ecommerce_service'):
+            return JsonResponse(
+                {'error': 'Service unavailable'}, status=status.HTTP_503_SERVICE_UNAVAILABLE
+            )
+
         # Send time when this view is called - https://openedx.atlassian.net/browse/REV-984
         track_segment_event(request.site, request.user, SEGMENT_MOBILE_BASKET_ADD, {'emitted_at': time.time()})
 
diff --git a/pylintrc b/pylintrc
index 7206c5f1f05..cb29ca34409 100644
--- a/pylintrc
+++ b/pylintrc
@@ -86,7 +86,7 @@ disable=
 # the pylint import errors, since they conflict at times.
     wrong-import-order,
     ungrouped-imports,
-
+    logging-fstring-interpolation,
 [REPORTS]
 
 # Set the output format. Available formats are text, parseable, colorized, msvs