diff --git a/tests/orchestration/test_abri_log_job_orchestrator.py b/tests/orchestration/test_abri_log_job_orchestrator.py
index afdc02f39..2cfb265f8 100644
--- a/tests/orchestration/test_abri_log_job_orchestrator.py
+++ b/tests/orchestration/test_abri_log_job_orchestrator.py
@@ -5,6 +5,7 @@ from typing import List, Tuple
 from unittest.mock import MagicMock, patch
 
 import pytest
+from hubspot.crm.deals import SimplePublicObjectInput  # type: ignore[reportMissingTypeStubs]
 
 from domain.abri.models import PlaceRef
 from infrastructure.abri.abri_client import AbriClient
@@ -13,6 +14,7 @@ from infrastructure.hubspot.deal_properties_client import HubspotDealPropertiesC
 from orchestration.abri_log_job_orchestrator import (
     AbriLogJobOrchestrator,
     ConfirmedSurveyBooking,
+    LogJobSummary,
 )
 
 FIXTURE_DIR = Path(__file__).parents[1] / "abri"
@@ -119,3 +121,31 @@ def test_run_sends_a_logjob_envelope_built_from_the_deals_fields(
         "resource": "NAULKH",
         "resource_group": "Surveyors",
     }
+
+
+# --- happy path: the returned job_no lands in HubSpot, then the database ---
+
+
+def test_run_writes_the_job_no_to_the_hubspot_deal_and_then_the_database(
+    orchestrator: AbriLogJobOrchestrator,
+    mock_session: MagicMock,
+    sdk_client: MagicMock,
+    deal_database: FakeDealDatabase,
+) -> None:
+    # Arrange
+    mock_session.post.return_value.content = _load_fixture(
+        "abri_relay_logjob_success_response.xml"
+    )
+
+    # Act
+    result = orchestrator.run(BOOKING)
+
+    # Assert
+    assert result == LogJobSummary(deal_id=DEAL_ID, job_no="AD0226519")
+    sdk_client.crm.deals.basic_api.update.assert_called_once_with(
+        DEAL_ID,
+        simple_public_object_input=SimplePublicObjectInput(
+            properties={"client_booking_reference": "AD0226519"}
+        ),
+    )
+    assert deal_database.recorded_job_nos == [(DEAL_ID, "AD0226519")]