add migration for setting

src/pretix/base/migrations/0302_customerssoprovider_allow_convert_to_sso.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.12 on 2026-07-01 08:34
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pretixbase", "0301_reusablemedium_remove_orderposition"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="customerssoprovider",
+            name="allow_convert_to_sso",
+            field=models.BooleanField(default=False),
+        ),
+    ]

src/pretix/base/models/customers.py

@@ -79,7 +79,7 @@ class CustomerSSOProvider(LoggedModel):
         help_text=_(
             "If enabled, when an existing customer registered with email and password tries to login through this SSO provider, pretix changes the account to single-sign-on. Otherwise pretix does not allow to log in."
         ),
-    ),
+    )
     configuration = models.JSONField()
 
     def allow_delete(self):

src/pretix/control/forms/organizer.py

@@ -1244,7 +1244,7 @@ class SSOProviderForm(I18nModelForm):
 
     class Meta:
         model = CustomerSSOProvider
-        fields = ['is_active', 'name', 'button_label', 'method']
+        fields = ['is_active', 'name', 'button_label', 'method', 'allow_convert_to_sso']
         widgets = {
             'method': forms.RadioSelect,
         }

src/tests/presale/test_customer.py

@@ -441,9 +441,9 @@ def test_org_sso_login_new_customer_email_conflict(env, client, provider):
 @pytest.mark.django_db(transaction=True)
 def test_org_sso_convert_customer_on_login(env, client, provider):
     organizer = env[0]
+    provider.allow_convert_to_sso = True
+    provider.save()
     with scopes_disabled():
-        provider.allow_convert_to_sso = True
-        provider.save()
         customer = organizer.customers.create(email='new@example.net', is_verified=True, is_active=False)
         customer.set_password('foo')
         customer.save()