diff --git a/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/approve_serializers.py b/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/approve_serializers.py
index 0597774d74..d849acab16 100644
--- a/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/approve_serializers.py
+++ b/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/approve_serializers.py
@@ -10,9 +10,9 @@
 from tilavarauspalvelu.enums import AccessType, ReservationStateChoice
 from tilavarauspalvelu.integrations.email.main import EmailService
 from tilavarauspalvelu.integrations.keyless_entry import PindoraClient
-from tilavarauspalvelu.integrations.keyless_entry.exceptions import PindoraClientError
 from tilavarauspalvelu.models import Reservation
 from utils.date_utils import local_datetime
+from utils.external_service.errors import ExternalServiceError
 
 if TYPE_CHECKING:
     from tilavarauspalvelu.typing import ReservationApproveData
@@ -59,7 +59,7 @@ def validate(self, data: ReservationApproveData) -> ReservationApproveData:
     def update(self, instance: Reservation, validated_data: ReservationApproveData) -> Reservation:
         if self.instance.access_type == AccessType.ACCESS_CODE and instance.recurring_reservation is None:
             # Allow activation in Pindora to fail, will be handled by a background task.
-            with suppress(PindoraClientError):
+            with suppress(ExternalServiceError):
                 # If access code has not been generated (e.g. returned to handling after a deny and then approved),
                 # create a new active access code in Pindora.
                 if instance.access_code_generated_at is None:
diff --git a/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/confirm_serializers.py b/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/confirm_serializers.py
index 3d38522527..ee74c48a71 100644
--- a/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/confirm_serializers.py
+++ b/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/confirm_serializers.py
@@ -13,7 +13,6 @@
 from tilavarauspalvelu.enums import AccessType, OrderStatus, PaymentType, ReservationStateChoice
 from tilavarauspalvelu.integrations.email.main import EmailService
 from tilavarauspalvelu.integrations.keyless_entry import PindoraClient
-from tilavarauspalvelu.integrations.keyless_entry.exceptions import PindoraClientError
 from tilavarauspalvelu.integrations.sentry import SentryLogger
 from tilavarauspalvelu.integrations.verkkokauppa.helpers import (
     create_mock_verkkokauppa_order,
@@ -23,6 +22,7 @@
 from tilavarauspalvelu.integrations.verkkokauppa.verkkokauppa_api_client import VerkkokauppaAPIClient
 from tilavarauspalvelu.models import PaymentOrder, Reservation
 from utils.date_utils import local_datetime
+from utils.external_service.errors import ExternalServiceError
 
 if TYPE_CHECKING:
     from tilavarauspalvelu.integrations.verkkokauppa.order.types import CreateOrderParams, Order
@@ -90,7 +90,7 @@ def update(self, instance: Reservation, validated_data: ReservationConfirmData)
         if instance.state == ReservationStateChoice.CONFIRMED:
             if self.instance.access_type == AccessType.ACCESS_CODE and instance.recurring_reservation is None:
                 # Allow activation in Pindora to fail, will be handled by a background task.
-                with suppress(PindoraClientError):
+                with suppress(ExternalServiceError):
                     PindoraClient.activate_reservation_access_code(reservation=instance)
                     instance.access_code_is_active = True
                     instance.save(update_fields=["access_code_is_active"])
diff --git a/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/staff_change_access_code_serializers.py b/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/staff_change_access_code_serializers.py
index 1ab5c7c143..fad9f83246 100644
--- a/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/staff_change_access_code_serializers.py
+++ b/backend/tilavarauspalvelu/api/graphql/types/reservation/serializers/staff_change_access_code_serializers.py
@@ -8,13 +8,15 @@
 
 from tilavarauspalvelu.integrations.email.main import EmailService
 from tilavarauspalvelu.integrations.keyless_entry import PindoraClient
-from tilavarauspalvelu.integrations.keyless_entry.exceptions import PindoraClientError, PindoraNotFoundError
+from tilavarauspalvelu.integrations.keyless_entry.exceptions import PindoraNotFoundError
 from tilavarauspalvelu.models import Reservation
 
 __all__ = [
     "StaffChangeReservationAccessCodeSerializer",
 ]
 
+from utils.external_service.errors import ExternalServiceError
+
 
 class StaffChangeReservationAccessCodeSerializer(NestingModelSerializer):
     """Change the access code of a reservation."""
@@ -51,7 +53,7 @@ def update(self, instance: Reservation, validated_data: dict[str, Any]) -> Reser
             instance.access_code_is_active = False
         else:
             if instance.access_code_should_be_active:
-                with suppress(PindoraClientError):
+                with suppress(ExternalServiceError):
                     PindoraClient.activate_reservation_access_code(reservation=instance)
                     instance.access_code_is_active = True
                 EmailService.send_reservation_modified_access_code_email(reservation=instance)
diff --git a/backend/tilavarauspalvelu/models/payment_order/actions.py b/backend/tilavarauspalvelu/models/payment_order/actions.py
index e073f2bad5..5c922f2bfe 100644
--- a/backend/tilavarauspalvelu/models/payment_order/actions.py
+++ b/backend/tilavarauspalvelu/models/payment_order/actions.py
@@ -9,13 +9,13 @@
 from tilavarauspalvelu.enums import AccessType, OrderStatus, ReservationStateChoice
 from tilavarauspalvelu.integrations.email.main import EmailService
 from tilavarauspalvelu.integrations.keyless_entry import PindoraClient
-from tilavarauspalvelu.integrations.keyless_entry.exceptions import PindoraClientError
 from tilavarauspalvelu.integrations.sentry import SentryLogger
 from tilavarauspalvelu.integrations.verkkokauppa.order.exceptions import CancelOrderError
 from tilavarauspalvelu.integrations.verkkokauppa.payment.exceptions import GetPaymentError
 from tilavarauspalvelu.integrations.verkkokauppa.payment.types import PaymentStatus
 from tilavarauspalvelu.integrations.verkkokauppa.verkkokauppa_api_client import VerkkokauppaAPIClient
 from utils.date_utils import local_datetime
+from utils.external_service.errors import ExternalServiceError
 
 if TYPE_CHECKING:
     from tilavarauspalvelu.integrations.verkkokauppa.order.types import Order
@@ -119,7 +119,7 @@ def update_order_status(self, new_status: OrderStatus, payment_id: str = "") ->
 
             if reservation.access_type == AccessType.ACCESS_CODE:
                 # Allow activation in Pindora to fail, will be handled by a background task.
-                with suppress(PindoraClientError):
+                with suppress(ExternalServiceError):
                     PindoraClient.activate_reservation_access_code(reservation=reservation)
                     reservation.access_code_is_active = True
                     update_fields.append("access_code_is_active")
diff --git a/backend/tilavarauspalvelu/tasks.py b/backend/tilavarauspalvelu/tasks.py
index 6100fccfc0..2f1af4ebff 100644
--- a/backend/tilavarauspalvelu/tasks.py
+++ b/backend/tilavarauspalvelu/tasks.py
@@ -30,7 +30,6 @@
     Weekday,
 )
 from tilavarauspalvelu.integrations.email.main import EmailService
-from tilavarauspalvelu.integrations.keyless_entry.exceptions import PindoraClientError
 from tilavarauspalvelu.integrations.sentry import SentryLogger
 from tilavarauspalvelu.models import (
     AffectingTimeSpan,
@@ -747,7 +746,7 @@ def create_missing_pindora_reservations() -> None:
     for reservation in reservations:
         is_active = reservation.access_code_should_be_active
 
-        with suppress(PindoraClientError):
+        with suppress(ExternalServiceError):
             try:
                 response = PindoraClient.create_reservation(reservation=reservation, is_active=is_active)
 
@@ -789,7 +788,7 @@ def update_pindora_access_code_is_active() -> None:
         return
 
     for reservation in reservations:
-        with suppress(PindoraClientError):
+        with suppress(ExternalServiceError):
             if reservation.access_code_should_be_active:
                 try:
                     PindoraClient.activate_reservation_access_code(reservation=reservation)
diff --git a/backend/utils/external_service/base_external_service_client.py b/backend/utils/external_service/base_external_service_client.py
index 0597187056..287a901330 100644
--- a/backend/utils/external_service/base_external_service_client.py
+++ b/backend/utils/external_service/base_external_service_client.py
@@ -7,7 +7,11 @@
 from requests import request
 from rest_framework.status import HTTP_500_INTERNAL_SERVER_ERROR
 
-from utils.external_service.errors import ExternalServiceParseJSONError, ExternalServiceRequestError
+from utils.external_service.errors import (
+    ExternalServiceError,
+    ExternalServiceParseJSONError,
+    ExternalServiceRequestError,
+)
 
 if TYPE_CHECKING:
     from requests import Response
@@ -81,7 +85,11 @@ def handle_500_error(cls, response: Response) -> None:
 
     @classmethod
     def request(cls, method: Literal["get", "post", "put", "delete"], url: str, **kwargs: Any) -> Response:
-        return request(method, url, **kwargs, timeout=cls.REQUEST_TIMEOUT_SECONDS)
+        try:
+            return request(method, url, **kwargs, timeout=cls.REQUEST_TIMEOUT_SECONDS)
+        except Exception as err:
+            # Convert all exceptions to ExternalServiceError to allow easily suppressing them with
+            raise ExternalServiceError from err
 
     @classmethod
     @stamina.retry(on=Exception, attempts=3)  # Likely retry should happen no matter the exception