diff --git a/ctms/schemas/contact.py b/ctms/schemas/contact.py
index ffc71f0c..383924c6 100644
--- a/ctms/schemas/contact.py
+++ b/ctms/schemas/contact.py
@@ -282,7 +282,7 @@ class IdentityResponse(BaseModel):
 
     email_id: UUID
     primary_email: str
-    basket_token: UUID
+    basket_token: Optional[UUID] = None
     sfdc_id: Optional[str] = None
     mofo_contact_id: Optional[str] = None
     mofo_email_id: Optional[str] = None
diff --git a/tests/unit/conftest.py b/tests/unit/conftest.py
index df2aa1fb..f93b3279 100644
--- a/tests/unit/conftest.py
+++ b/tests/unit/conftest.py
@@ -45,7 +45,11 @@
     StripeSubscriptionCreateSchema,
     StripeSubscriptionItemCreateSchema,
 )
-from tests.unit.sample_data import SAMPLE_CONTACTS, SAMPLE_STRIPE_DATA
+from tests.unit.sample_data import (
+    SAMPLE_CONTACTS,
+    SAMPLE_MOST_MINIMAL,
+    SAMPLE_STRIPE_DATA,
+)
 
 MY_FOLDER = os.path.dirname(__file__)
 TEST_FOLDER = os.path.dirname(MY_FOLDER)
@@ -127,6 +131,20 @@ def end_savepoint(session, transaction):
     transaction.rollback()
 
 
+@pytest.fixture
+def most_minimal_contact(dbsession):
+    email_id = UUID("62d8d3c6-95f3-4ed6-b176-7f69acff22f6")
+    contact = SAMPLE_MOST_MINIMAL
+    assert contact.amo is None
+    assert contact.fxa is None
+    assert contact.mofo is None
+    assert len(contact.waitlists) == 0
+    assert contact.email.basket_token is None
+    create_contact(dbsession, email_id, contact, get_metrics())
+    dbsession.commit()
+    return contact
+
+
 @pytest.fixture
 def minimal_contact(dbsession):
     email_id = UUID("93db83d4-4119-4e0c-af87-a713786fa81d")
diff --git a/tests/unit/sample_data.py b/tests/unit/sample_data.py
index f5aca344..7ea605cf 100644
--- a/tests/unit/sample_data.py
+++ b/tests/unit/sample_data.py
@@ -15,6 +15,14 @@
     WaitlistSchema,
 )
 
+# A contact that only sets primary_email
+SAMPLE_MOST_MINIMAL = ContactSchema(
+    email=EmailSchema(
+        email_id=UUID("62d8d3c6-95f3-4ed6-b176-7f69acff22f6"),
+        primary_email="ctms-most-minimal-user@example.com",
+    ),
+)
+
 # A contact that has just some of the fields entered
 SAMPLE_MINIMAL = ContactSchema(
     email=EmailSchema(
diff --git a/tests/unit/test_api_delete.py b/tests/unit/test_api_delete.py
index 0607c2a5..876af282 100644
--- a/tests/unit/test_api_delete.py
+++ b/tests/unit/test_api_delete.py
@@ -12,3 +12,11 @@ def test_delete_contact_by_primary_email(client, maximal_contact):
     assert resp.status_code == 200
     resp = client.delete(f"/ctms/{primary_email}")
     assert resp.status_code == 404
+
+
+def test_delete_contact_by_primary_email_with_basket_token_unset(
+    client, most_minimal_contact
+):
+    primary_email = most_minimal_contact.email.primary_email
+    resp = client.delete(f"/ctms/{primary_email}")
+    assert resp.status_code == 200