diff --git a/app/dao/service_callback_api_dao.py b/app/dao/service_callback_api_dao.py
index 5e0d497d61..d8bff5eb56 100644
--- a/app/dao/service_callback_api_dao.py
+++ b/app/dao/service_callback_api_dao.py
@@ -73,6 +73,11 @@ def reset_service_callback_api(service_callback_api, updated_by_id, url=None, be
     db.session.add(service_callback_api)
 
 
+def get_service_callback_api_with_service_id(service_id):
+    # There is ONLY one callback configured per service
+    return ServiceCallbackApi.query.filter_by(service_id=service_id).all()
+
+
 def get_service_callback_api(service_callback_api_id, service_id):
     return ServiceCallbackApi.query.filter_by(id=service_callback_api_id, service_id=service_id).first()
 
@@ -92,8 +97,8 @@ def delete_service_callback_api(service_callback_api):
 
 @transactional
 @version_class(ServiceCallbackApi)
-def suspend_service_callback_api(service_callback_api, updated_by_id):
-    service_callback_api.is_suspended = True
+def suspend_unsuspend_service_callback_api(service_callback_api, updated_by_id, suspend=False):
+    service_callback_api.is_suspended = suspend
     service_callback_api.suspended_at = datetime.now(timezone.utc)
     service_callback_api.updated_by_id = updated_by_id
     service_callback_api.updated_at = datetime.now(timezone.utc)
diff --git a/app/models.py b/app/models.py
index 8e832d0997..e0cba92019 100644
--- a/app/models.py
+++ b/app/models.py
@@ -872,6 +872,7 @@ class ServiceCallbackApi(BaseModel, Versioned):
     updated_by = db.relationship("User")
     updated_by_id = db.Column(UUID(as_uuid=True), db.ForeignKey("users.id"), index=True, nullable=False)
     is_suspended = db.Column(db.Boolean, nullable=True, default=False)
+    # If is_suspended is False and suspended_at is not None, then the callback was suspended and then unsuspended
     suspended_at = db.Column(db.DateTime, nullable=True)
 
     __table_args__ = (UniqueConstraint("service_id", "callback_type", name="uix_service_callback_type"),)
diff --git a/app/service/callback_rest.py b/app/service/callback_rest.py
index 15b243ec60..83c8126e8a 100644
--- a/app/service/callback_rest.py
+++ b/app/service/callback_rest.py
@@ -4,8 +4,10 @@
 from app.dao.service_callback_api_dao import (
     delete_service_callback_api,
     get_service_callback_api,
+    get_service_callback_api_with_service_id,
     reset_service_callback_api,
     save_service_callback_api,
+    suspend_unsuspend_service_callback_api,
 )
 from app.dao.service_inbound_api_dao import (
     delete_service_inbound_api,
@@ -129,6 +131,21 @@ def remove_service_callback_api(service_id, callback_api_id):
     return "", 204
 
 
+@service_callback_blueprint.route("/delivery-receipt-api/suspend-callback", methods=["POST"])
+def suspend_callback_api(service_id):
+    data = request.get_json()
+    callback_api = get_service_callback_api_with_service_id(service_id)
+    if not callback_api:
+        error = "Service delivery receipt callback API not found"
+        raise InvalidRequest(error, status_code=404)
+
+    updated_by_id = data["updated_by_id"]
+    suspend_unsuspend = data["suspend_unsuspend"]
+
+    suspend_unsuspend_service_callback_api(callback_api[0], updated_by_id, suspend_unsuspend)
+    return jsonify(data=callback_api[0].serialize()), 200
+
+
 def handle_sql_error(e, table_name):
     if (
         hasattr(e, "orig")
diff --git a/tests/app/dao/test_service_callback_api_dao.py b/tests/app/dao/test_service_callback_api_dao.py
index 9bb357511e..28d17a48c8 100644
--- a/tests/app/dao/test_service_callback_api_dao.py
+++ b/tests/app/dao/test_service_callback_api_dao.py
@@ -11,7 +11,7 @@
     reset_service_callback_api,
     resign_service_callbacks,
     save_service_callback_api,
-    suspend_service_callback_api,
+    suspend_unsuspend_service_callback_api,
 )
 from app.models import ServiceCallbackApi
 from tests.app.db import create_service_callback_api
@@ -238,9 +238,10 @@ def test_update_service_callback_api(self, sample_service):
         assert len(results) == 1
         saved_callback_api = results[0]
 
-        suspend_service_callback_api(
+        suspend_unsuspend_service_callback_api(
             saved_callback_api,
             updated_by_id=sample_service.users[0].id,
+            suspend=True,
         )
         updated_results = ServiceCallbackApi.query.all()
         assert len(updated_results) == 1
diff --git a/tests/app/service/test_callback_rest.py b/tests/app/service/test_callback_rest.py
index d3e016e9dc..dbacaa72c1 100644
--- a/tests/app/service/test_callback_rest.py
+++ b/tests/app/service/test_callback_rest.py
@@ -1,5 +1,7 @@
 import uuid
 
+import pytest
+
 from app.models import ServiceCallbackApi, ServiceInboundApi
 from tests.app.db import create_service_callback_api, create_service_inbound_api
 
@@ -196,3 +198,22 @@ def test_delete_service_callback_api(admin_request, sample_service):
 
     assert response is None
     assert ServiceCallbackApi.query.count() == 0
+
+
+class TestSuspendCallbackApi:
+    @pytest.mark.parametrize("suspend_unsuspend", [True, False])
+    def test_suspend_callback_api(self, admin_request, sample_service, suspend_unsuspend):
+        service_callback_api = create_service_callback_api(sample_service)
+
+        data = {
+            "suspend_unsuspend": suspend_unsuspend,
+            "updated_by_id": str(sample_service.users[0].id),
+        }
+        admin_request.post(
+            "service_callback.suspend_callback_api",
+            service_id=sample_service.id,
+            _data=data,
+        )
+        callback = ServiceCallbackApi.query.get(service_callback_api.id)
+        assert callback.is_suspended is suspend_unsuspend
+        assert callback.updated_by_id == sample_service.users[0].id