diff --git a/etl/hubspot/tests/test_hubspot_deal_differ.py b/etl/hubspot/tests/test_hubspot_deal_differ.py
index e5b2f87c9..5699262fb 100644
--- a/etl/hubspot/tests/test_hubspot_deal_differ.py
+++ b/etl/hubspot/tests/test_hubspot_deal_differ.py
@@ -928,6 +928,44 @@ def test_abri_deal_abandonment__non_abri_deal__returns_false() -> None:
     assert result is False
 
 
+@pytest.mark.parametrize(
+    "new_overrides",
+    [
+        {"number_of_attempts": "2"},
+        {"number_of_attempts": ""},
+        {"number_of_attempts": "not-a-number"},
+        {},
+    ],
+)
+def test_abri_deal_abandonment__fewer_than_three_parseable_attempts__returns_false(
+    new_overrides: Dict[str, str],
+) -> None:
+    deal_id = uuid.uuid4()
+
+    # Arrange
+    old_deal = make_old_deal(
+        id=deal_id,
+        project_code="Abri Condition",
+        outcome=None,
+    )
+    new_deal = make_new_deal(
+        deal_id,
+        project_code="Abri Condition",
+        outcome="No Answer",
+        **new_overrides,
+    )
+
+    # Act
+    result = HubspotDealDiffer.check_for_abri_deal_abandonment(
+        new_deal=new_deal,
+        new_project=None,
+        old_deal=old_deal,
+    )
+
+    # Assert
+    assert result is False
+
+
 # =======================
 # DB UPDATE TRIGGER TESTS
 # =======================