diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index 8474021495..3670082934 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -5792,24 +5792,33 @@ class ScheduleSerializer(PromptFieldCleanTextMixin, LaunchConfigurationBaseSeria
     def get_related(self, obj):
         res = super(ScheduleSerializer, self).get_related(obj)
         res.update(dict(unified_jobs=self.reverse('api:schedule_unified_jobs_list', kwargs={'pk': obj.pk})))
-        if obj.unified_job_template:
-            res['unified_job_template'] = obj.unified_job_template.get_absolute_url(self.context.get('request'))
+        try:
+            ujt = obj.unified_job_template
+        except ObjectDoesNotExist:
+            ujt = None
+        if ujt:
+            res['unified_job_template'] = ujt.get_absolute_url(self.context.get('request'))
             try:
-                if obj.unified_job_template.project:
-                    res['project'] = obj.unified_job_template.project.get_absolute_url(self.context.get('request'))
+                if ujt.project:
+                    res['project'] = ujt.project.get_absolute_url(self.context.get('request'))
             except ObjectDoesNotExist:
                 pass
         if obj.inventory:
             res['inventory'] = obj.inventory.get_absolute_url(self.context.get('request'))
-        elif obj.unified_job_template and getattr(obj.unified_job_template, 'inventory', None):
-            res['inventory'] = obj.unified_job_template.inventory.get_absolute_url(self.context.get('request'))
+        elif ujt and getattr(ujt, 'inventory', None):
+            res['inventory'] = ujt.inventory.get_absolute_url(self.context.get('request'))
         return res
 
     def get_summary_fields(self, obj):
         summary_fields = super(ScheduleSerializer, self).get_summary_fields(obj)
 
-        if isinstance(obj.unified_job_template, SystemJobTemplate):
-            summary_fields['unified_job_template']['job_type'] = obj.unified_job_template.job_type
+        try:
+            ujt = obj.unified_job_template
+        except ObjectDoesNotExist:
+            return summary_fields
+
+        if isinstance(ujt, SystemJobTemplate):
+            summary_fields['unified_job_template']['job_type'] = ujt.job_type
 
         # We are not showing instance groups on summary fields because JTs don't either
 
@@ -5817,8 +5826,8 @@ class ScheduleSerializer(PromptFieldCleanTextMixin, LaunchConfigurationBaseSeria
             return summary_fields
 
         inventory = None
-        if obj.unified_job_template and getattr(obj.unified_job_template, 'inventory', None):
-            inventory = obj.unified_job_template.inventory
+        if ujt and getattr(ujt, 'inventory', None):
+            inventory = ujt.inventory
         else:
             return summary_fields
 
diff --git a/awx/main/migrations/0208_cleanup_orphaned_token_schedules.py b/awx/main/migrations/0208_cleanup_orphaned_token_schedules.py
new file mode 100644
index 0000000000..7868607821
--- /dev/null
+++ b/awx/main/migrations/0208_cleanup_orphaned_token_schedules.py
@@ -0,0 +1,39 @@
+import logging
+
+from django.db import migrations
+
+logger = logging.getLogger('awx.main.migrations')
+
+
+def cleanup_orphaned_token_schedules(apps, schema_editor):
+    """Remove orphaned 'Cleanup Expired OAuth 2 Tokens' schedules left behind
+    by migration 0204 when cascade delete did not fire for the associated
+    SystemJobTemplate.  Also clears any stale next_schedule references."""
+    Schedule = apps.get_model('main', 'Schedule')
+    UnifiedJobTemplate = apps.get_model('main', 'UnifiedJobTemplate')
+
+    orphaned = Schedule.objects.filter(
+        name='Cleanup Expired OAuth 2 Tokens',
+    ).exclude(
+        unified_job_template_id__in=UnifiedJobTemplate.objects.values('pk'),
+    )
+
+    orphan_ids = list(orphaned.values_list('pk', flat=True))
+    if not orphan_ids:
+        return
+
+    logger.info(f'Cleaning up {len(orphan_ids)} orphaned token cleanup schedule(s): {orphan_ids}')
+    stale_refs = UnifiedJobTemplate.objects.filter(next_schedule_id__in=orphan_ids).update(next_schedule=None)
+    if stale_refs:
+        logger.info(f'Cleared {stale_refs} stale next_schedule reference(s)')
+    orphaned.delete()
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('main', '0207_merge_0205_0206'),
+    ]
+
+    operations = [
+        migrations.RunPython(cleanup_orphaned_token_schedules, migrations.RunPython.noop),
+    ]
diff --git a/awx/main/migrations/0208_alter_skip_tags_to_textfield.py b/awx/main/migrations/0209_alter_skip_tags_to_textfield.py
similarity index 89%
rename from awx/main/migrations/0208_alter_skip_tags_to_textfield.py
rename to awx/main/migrations/0209_alter_skip_tags_to_textfield.py
index da386f4bf2..59d3961605 100644
--- a/awx/main/migrations/0208_alter_skip_tags_to_textfield.py
+++ b/awx/main/migrations/0209_alter_skip_tags_to_textfield.py
@@ -5,7 +5,7 @@ from django.db import migrations, models
 
 class Migration(migrations.Migration):
     dependencies = [
-        ('main', '0207_merge_0205_0206'),
+        ('main', '0208_cleanup_orphaned_token_schedules'),
     ]
 
     operations = [
diff --git a/awx/main/migrations/0209_fix_system_auditor_migration.py b/awx/main/migrations/0210_fix_system_auditor_migration.py
similarity index 96%
rename from awx/main/migrations/0209_fix_system_auditor_migration.py
rename to awx/main/migrations/0210_fix_system_auditor_migration.py
index c9a122eee9..6583ebce61 100644
--- a/awx/main/migrations/0209_fix_system_auditor_migration.py
+++ b/awx/main/migrations/0210_fix_system_auditor_migration.py
@@ -37,7 +37,7 @@ def fix_system_auditor_assignments(apps, schema_editor):
 
 class Migration(migrations.Migration):
     dependencies = [
-        ('main', '0208_alter_skip_tags_to_textfield'),
+        ('main', '0209_alter_skip_tags_to_textfield'),
     ]
 
     operations = [
diff --git a/awx/main/migrations/0210_remove_host_last_job_fields.py b/awx/main/migrations/0211_remove_host_last_job_fields.py
similarity index 86%
rename from awx/main/migrations/0210_remove_host_last_job_fields.py
rename to awx/main/migrations/0211_remove_host_last_job_fields.py
index 45192e7012..2588bf682d 100644
--- a/awx/main/migrations/0210_remove_host_last_job_fields.py
+++ b/awx/main/migrations/0211_remove_host_last_job_fields.py
@@ -3,7 +3,7 @@ from django.db import migrations
 
 class Migration(migrations.Migration):
     dependencies = [
-        ('main', '0209_fix_system_auditor_migration'),
+        ('main', '0210_fix_system_auditor_migration'),
     ]
 
     operations = [
diff --git a/awx/main/migrations/0211_create_metrics_utility_functions.py b/awx/main/migrations/0212_create_metrics_utility_functions.py
similarity index 96%
rename from awx/main/migrations/0211_create_metrics_utility_functions.py
rename to awx/main/migrations/0212_create_metrics_utility_functions.py
index ef2a149acb..f754ddb5ab 100644
--- a/awx/main/migrations/0211_create_metrics_utility_functions.py
+++ b/awx/main/migrations/0212_create_metrics_utility_functions.py
@@ -47,7 +47,7 @@ DROP_FUNCTIONS_SQL = """
 
 class Migration(migrations.Migration):
     dependencies = [
-        ('main', '0210_remove_host_last_job_fields'),
+        ('main', '0211_remove_host_last_job_fields'),
     ]
 
     operations = [
diff --git a/awx/main/migrations/_create_system_jobs.py b/awx/main/migrations/_create_system_jobs.py
index 10901a8095..d911fe998d 100644
--- a/awx/main/migrations/_create_system_jobs.py
+++ b/awx/main/migrations/_create_system_jobs.py
@@ -48,6 +48,12 @@ def create_clearsessions_jt(apps, schema_editor):
 
 def delete_clear_tokens_sjt(apps, schema_editor):
     SystemJobTemplate = apps.get_model('main', 'SystemJobTemplate')
+    Schedule = apps.get_model('main', 'Schedule')
+    UnifiedJobTemplate = apps.get_model('main', 'UnifiedJobTemplate')
     for sjt in SystemJobTemplate.objects.filter(job_type='cleanup_tokens'):
         logger.info(f'Deleting system job template id={sjt.id} due to removal of local OAuth2 tokens')
+        schedule_ids = list(Schedule.objects.filter(unified_job_template_id=sjt.pk).values_list('pk', flat=True))
+        if schedule_ids:
+            UnifiedJobTemplate.objects.filter(next_schedule_id__in=schedule_ids).update(next_schedule=None)
+            Schedule.objects.filter(pk__in=schedule_ids).delete()
         sjt.delete()
diff --git a/awx/main/tests/functional/migrations/test_token_sjt_removal.py b/awx/main/tests/functional/migrations/test_token_sjt_removal.py
index 35770fd4ca..0eace67ab9 100644
--- a/awx/main/tests/functional/migrations/test_token_sjt_removal.py
+++ b/awx/main/tests/functional/migrations/test_token_sjt_removal.py
@@ -1,9 +1,14 @@
+import importlib
+
 import pytest
 from django.apps import apps
 from django.utils.timezone import now
 
 from awx.main.migrations._create_system_jobs import delete_clear_tokens_sjt
 
+_migration_0208 = importlib.import_module('awx.main.migrations.0208_cleanup_orphaned_token_schedules')
+cleanup_orphaned_token_schedules = _migration_0208.cleanup_orphaned_token_schedules
+
 SJT_NAME = 'Cleanup Expired OAuth 2 Tokens'
 
 
@@ -49,10 +54,73 @@ def test_clear_token_sjt():
     assert qs.count() == 1
     sjt = qs.first()
     assert Schedule.objects.filter(unified_job_template=sjt).count() == 1
-    assert Schedule.objects.filter(unified_job_template__systemjobtemplate__name=SJT_NAME).count() == 1
 
-    # Now run the migration logic to remove
     delete_clear_tokens_sjt(apps, None)
     assert SystemJobTemplate.objects.filter(name=SJT_NAME).count() == 0
-    # Making sure that the schedule is cleaned up is the main point of this test
-    assert Schedule.objects.filter(unified_job_template__systemjobtemplate__name=SJT_NAME).count() == 0
+    assert Schedule.objects.filter(name=SJT_NAME).count() == 0
+
+
+def _get_or_create_surviving_ujt():
+    """Return a SystemJobTemplate that will survive cleanup_tokens deletion."""
+    from django.contrib.contenttypes.models import ContentType
+
+    SystemJobTemplate = apps.get_model('main', 'SystemJobTemplate')
+    sjt_ct = ContentType.objects.get_for_model(SystemJobTemplate)
+    now_dt = now()
+    sjt, _ = SystemJobTemplate.objects.get_or_create(
+        job_type='cleanup_sessions',
+        defaults=dict(
+            name='Cleanup Expired Sessions',
+            description='Cleans out expired browser sessions',
+            polymorphic_ctype=sjt_ct,
+            created=now_dt,
+            modified=now_dt,
+        ),
+    )
+    return sjt
+
+
+@pytest.mark.django_db
+def test_clear_token_sjt_clears_next_schedule():
+    Schedule = apps.get_model('main', 'Schedule')
+    UnifiedJobTemplate = apps.get_model('main', 'UnifiedJobTemplate')
+    create_cleartokens_jt(apps, None)
+
+    sched = Schedule.objects.get(name=SJT_NAME)
+    surviving_ujt = _get_or_create_surviving_ujt()
+    UnifiedJobTemplate.objects.filter(pk=surviving_ujt.pk).update(next_schedule=sched)
+
+    delete_clear_tokens_sjt(apps, None)
+    assert Schedule.objects.filter(name=SJT_NAME).count() == 0
+    surviving_ujt.refresh_from_db()
+    assert surviving_ujt.next_schedule is None, 'Stale next_schedule on surviving template should be cleared'
+
+
+@pytest.mark.django_db
+def test_cleanup_orphaned_token_schedules():
+    """Simulate an orphaned schedule (UJT row missing) and verify the
+    cleanup migration removes it and clears stale next_schedule on a
+    surviving template."""
+    Schedule = apps.get_model('main', 'Schedule')
+    UnifiedJobTemplate = apps.get_model('main', 'UnifiedJobTemplate')
+    create_cleartokens_jt(apps, None)
+
+    sched = Schedule.objects.get(name=SJT_NAME)
+    sched_id = sched.pk
+    ujt_id = sched.unified_job_template_id
+
+    surviving_ujt = _get_or_create_surviving_ujt()
+    UnifiedJobTemplate.objects.filter(pk=surviving_ujt.pk).update(next_schedule=sched)
+
+    from django.db import connection
+
+    with connection.cursor() as cursor:
+        cursor.execute('DELETE FROM main_systemjobtemplate WHERE unifiedjobtemplate_ptr_id = %s', [ujt_id])
+        cursor.execute('DELETE FROM main_unifiedjobtemplate WHERE id = %s', [ujt_id])
+
+    assert Schedule.objects.filter(pk=sched_id).exists(), 'Orphaned schedule should still exist'
+
+    cleanup_orphaned_token_schedules(apps, None)
+    assert not Schedule.objects.filter(pk=sched_id).exists(), 'Orphaned schedule should be removed'
+    surviving_ujt.refresh_from_db()
+    assert surviving_ujt.next_schedule is None, 'Stale next_schedule on surviving template should be cleared'
diff --git a/awx/main/tests/functional/test_migrations.py b/awx/main/tests/functional/test_migrations.py
index 7bb25d4fc5..0eeeca099d 100644
--- a/awx/main/tests/functional/test_migrations.py
+++ b/awx/main/tests/functional/test_migrations.py
@@ -251,7 +251,7 @@ class TestSystemAuditorMigration:
 
     def test_fix_system_auditor_migration_backfills_missing(self, migrator):
         """
-        Migration 0209 should backfill Platform Auditor for any
+        Migration 0210 should backfill Platform Auditor for any
         system_auditor members who were missed by the original migration.
         """
         state = migrator.apply_initial_migration(('main', '0190_alter_inventorysource_source_and_more'))
@@ -273,7 +273,7 @@ class TestSystemAuditorMigration:
             "Setup: user should not have Platform Auditor before corrective migration"
         )
 
-        state = migrator.apply_tested_migration(('main', '0209_fix_system_auditor_migration'))
+        state = migrator.apply_tested_migration(('main', '0210_fix_system_auditor_migration'))
         RoleUserAssignment = state.apps.get_model('dab_rbac', 'RoleUserAssignment')
 
         assert RoleUserAssignment.objects.filter(user=user.id, role_definition__name='Platform Auditor').exists(), (
@@ -282,7 +282,7 @@ class TestSystemAuditorMigration:
 
     def test_fix_system_auditor_migration_no_duplicates(self, migrator):
         """
-        Migration 0209 must be idempotent — users who already have
+        Migration 0210 must be idempotent — users who already have
         Platform Auditor should not receive a duplicate assignment.
         """
         state = migrator.apply_initial_migration(('main', '0190_alter_inventorysource_source_and_more'))
@@ -299,7 +299,7 @@ class TestSystemAuditorMigration:
         # Confirm the user already has the assignment (from the fixed 0192)
         assert RoleUserAssignment.objects.filter(user=user.id, role_definition__name='Platform Auditor').exists()
 
-        state = migrator.apply_tested_migration(('main', '0209_fix_system_auditor_migration'))
+        state = migrator.apply_tested_migration(('main', '0210_fix_system_auditor_migration'))
         RoleUserAssignment = state.apps.get_model('dab_rbac', 'RoleUserAssignment')
 
         assert RoleUserAssignment.objects.filter(user=user.id, role_definition__name='Platform Auditor').count() == 1, (