diff --git a/greg/models.py b/greg/models.py
index 189cae6024cc6ed1ad2ac57ed51b6c25f743effa..8b82a75501b2dcdefa81c9d8a23089db17199c49 100644
--- a/greg/models.py
+++ b/greg/models.py
@@ -643,7 +643,7 @@ class Sponsor(BaseModel):
             models.UniqueConstraint(name="unique_feide_id", fields=["feide_id"])
         ]
 
-    def get_allowed_units(self) -> set[OrganizationalUnit]:
+    def get_allowed_units(self) -> list[OrganizationalUnit]:
         """
         Fetch every unit the sponsor has access to.
 
@@ -659,7 +659,10 @@ class Sponsor(BaseModel):
 
         # Add units accessible through direct access
         units = units.union({i.organizational_unit for i in connections})
-        return units
+
+        # Remove units that are deleted
+        units_filtered = [unit for unit in units if not unit.deleted]
+        return units_filtered
 
 
 class SponsorOrganizationalUnit(BaseModel):
diff --git a/greg/tasks.py b/greg/tasks.py
index ad6b3af909d5a394a720f402e8b725d39f34bd56..f0464dc5feb75d0ff07dc1f162f67bb64b3f9f62 100644
--- a/greg/tasks.py
+++ b/greg/tasks.py
@@ -41,7 +41,7 @@ def notify_sponsors_roles_ending() -> list[str]:
 
     # Map sponsors with email to units
     sponsors = Sponsor.objects.filter(work_email__isnull=False)
-    sp2unit = {s.id: list(s.get_allowed_units()) for s in sponsors}
+    sp2unit = {s.id: s.get_allowed_units() for s in sponsors}
 
     # Map sponsors to ending roles
     # Make sure only the sponsor(s) closest to the role is notified
diff --git a/greg/tests/models/test_sponsor.py b/greg/tests/models/test_sponsor.py
index b95330722bb4a51108756a25950eecdaf1fe6732..dd82aecd42d459a1f81a6b05d7d53829fbe22f8c 100644
--- a/greg/tests/models/test_sponsor.py
+++ b/greg/tests/models/test_sponsor.py
@@ -81,9 +81,20 @@ def test_get_allowed(sponsor_foo, unit1, unit2):
     unit2.save()
 
     # Without hier access only get unit connected to
-    assert sponsor_foo.get_allowed_units() == {unit1}
+    assert sponsor_foo.get_allowed_units() == [unit1]
 
     # With hier access also get units below
     spu.hierarchical_access = True
     spu.save()
-    assert sponsor_foo.get_allowed_units() == {unit1, unit2}
+    assert sponsor_foo.get_allowed_units() == [unit1, unit2]
+
+    # Don't get deleted units
+    unit2.deleted = True
+    unit2.save()
+    assert sponsor_foo.get_allowed_units() == [unit1]
+
+    unit2.deleted = False
+    unit1.deleted = True
+    unit2.save()
+    unit1.save()
+    assert sponsor_foo.get_allowed_units() == [unit2]