diff --git a/CONTEXT.md b/CONTEXT.md
index 859c56b08..46c920f8b 100644
--- a/CONTEXT.md
+++ b/CONTEXT.md
@@ -473,7 +473,7 @@ The auth credential required by the New EPC API; stored in the `EPC_AUTH_TOKEN`
 _Avoid_: API key, auth token, secret
 
 **Void Property**:
-A place Abri reports as having no live tenancy, signalled by `getSCSTenantData` returning a `RelayError` whose message is exactly `No_tenancy_found`. A normal outcome of the tenant-data sync, not a failure: there are no signatories to create as deal contacts, so the flow completes instead of dead-lettering the message, prefixing the deal's **Extra booking information** (`notes_for_surveyor`) with the `Void ||` marker. HubSpot has no append, so that property is read live and rewritten whole — never rewritten from the scraped snapshot, which lags by a scrape cycle and would discard a coordinator's unscraped edit. The marker doubles as the idempotency guard: a note already carrying it is left untouched, so redelivery never stacks markers. Distinct from a tenancy carrying no tenants (a tenancy exists; nobody is recorded against it), and from the same words arriving as a dumped 4GL query (`No Tenancy Found for Query FOR EACH ...`), which stays a rejection — Abri does not send that form to mean "known empty".
+A place Abri reports as having no live tenancy, signalled by `getSCSTenantData` returning a `RelayError` whose message is exactly `No_tenancy_found`. A normal outcome of the tenant-data sync, not a failure: there are no signatories to create as deal contacts, so the flow completes instead of dead-lettering the message, prefixing the deal's **Extra booking information** (`notes_for_surveyor`) with the `Void. ` marker. HubSpot has no append, so that property is read live and rewritten whole — never rewritten from the scraped snapshot, which lags by a scrape cycle and would discard a coordinator's unscraped edit. The marker doubles as the idempotency guard: a note already carrying it is left untouched, so redelivery never stacks markers. Distinct from a tenancy carrying no tenants (a tenancy exists; nobody is recorded against it), and from the same words arriving as a dumped 4GL query (`No Tenancy Found for Query FOR EACH ...`), which stays a rejection — Abri does not send that form to mean "known empty".
 _Avoid_: empty property, no tenancy (names the message, not the state), untenanted
 
 ## Team
diff --git a/docs/abri-hubspot-ops-guide.md b/docs/abri-hubspot-ops-guide.md
index 62a87011e..0a07c379a 100644
--- a/docs/abri-hubspot-ops-guide.md
+++ b/docs/abri-hubspot-ops-guide.md
@@ -43,12 +43,12 @@ system.
 
 **Empty properties.** If Abri has no live tenancy for the property, no tenant contacts
 appear on the deal — there is nobody to add — and **Extra booking information** is
-prefixed with `Void ||` so the surveyor sees it first. Anything already in that field is
+prefixed with `Void. ` so the surveyor sees it first. Anything already in that field is
 kept, after the prefix. This is expected, not a fault, and nothing needs re-triggering.
 
 Note that Abri sends the same signal for a property reference it does not recognise, so
 if you were expecting tenants, check the property is right before assuming it's empty.
-Delete the `Void ||` prefix if you establish the property is not empty after all — the
+Delete the `Void. ` prefix if you establish the property is not empty after all — the
 system only adds it once, so it will not come back on its own.
 
 ## The fields, and why they matter
diff --git a/orchestration/abri_orchestrator.py b/orchestration/abri_orchestrator.py
index c9fda15f5..ef6d167e0 100644
--- a/orchestration/abri_orchestrator.py
+++ b/orchestration/abri_orchestrator.py
@@ -32,7 +32,7 @@ NOTES_FOR_SURVEYOR_DEAL_PROPERTY = "notes_for_surveyor"
 # Prepended to that property when Abri reports the place as having no live
 # tenancy, so a surveyor sees it first. Doubles as the idempotency marker: a
 # note already carrying it is left alone, so redelivery never stacks markers.
-VOID_MARKER = "Void ||"
+VOID_MARKER = "Void. "
 
 
 def _vulnerability_description(tenant: Tenant) -> Optional[str]:
@@ -338,9 +338,7 @@ class AbriOrchestrator:
             AmendJobRequest(
                 job_no=job_no,
                 appointment_date=change.confirmed_survey_date,
-                appointment_time=slot_for_confirmed_time(
-                    change.confirmed_survey_time
-                ),
+                appointment_time=slot_for_confirmed_time(change.confirmed_survey_time),
                 resource=change.third_party_surveyor_identifier,
             )
         )
@@ -373,9 +371,7 @@ class AbriOrchestrator:
                 client_ref=client_ref_for_deal(booking.deal_id),
                 place_ref=booking.place_ref,
                 appointment_date=booking.confirmed_survey_date,
-                appointment_time=slot_for_confirmed_time(
-                    booking.confirmed_survey_time
-                ),
+                appointment_time=slot_for_confirmed_time(booking.confirmed_survey_time),
                 short_description=descriptions.short_description,
                 long_description=descriptions.long_description,
                 resource=booking.third_party_surveyor_identifier,
diff --git a/tests/orchestration/test_abri_orchestrator_tenant_data_sync.py b/tests/orchestration/test_abri_orchestrator_tenant_data_sync.py
index f0b8c8aed..76b09387a 100644
--- a/tests/orchestration/test_abri_orchestrator_tenant_data_sync.py
+++ b/tests/orchestration/test_abri_orchestrator_tenant_data_sync.py
@@ -75,9 +75,7 @@ class FakeDealDatabase:
 
 
 @pytest.fixture()
-def orchestrator(
-    mock_session: MagicMock, sdk_client: MagicMock
-) -> AbriOrchestrator:
+def orchestrator(mock_session: MagicMock, sdk_client: MagicMock) -> AbriOrchestrator:
     with patch(
         "infrastructure.abri.abri_client.requests.Session",
         return_value=mock_session,
@@ -587,7 +585,7 @@ def test_a_void_property_is_flagged_at_the_front_of_the_deals_booking_informatio
     sdk_client.crm.deals.basic_api.update.assert_called_once_with(
         DEAL_ID,
         simple_public_object_input=DealPropertyInput(
-            properties={"notes_for_surveyor": "Void || Key safe code 1234"}
+            properties={"notes_for_surveyor": "Void.  Key safe code 1234"}
         ),
     )
 
@@ -612,7 +610,7 @@ def test_a_void_property_with_no_existing_booking_information_is_flagged_alone(
     sdk_client.crm.deals.basic_api.update.assert_called_once_with(
         DEAL_ID,
         simple_public_object_input=DealPropertyInput(
-            properties={"notes_for_surveyor": "Void ||"}
+            properties={"notes_for_surveyor": "Void. "}
         ),
     )
 
@@ -627,7 +625,7 @@ def test_a_deal_already_flagged_void_is_left_alone_so_redelivery_never_stacks_fl
         "abri_relay_getscstenantdata_notenancyfound_response.xml"
     )
     sdk_client.crm.deals.basic_api.get_by_id.return_value.properties = {
-        "notes_for_surveyor": "Void || Key safe code 1234"
+        "notes_for_surveyor": "Void.  Key safe code 1234"
     }
 
     # Act