src/servala/core/admin.py

@@ -322,7 +322,7 @@ class ServiceDefinitionAdmin(admin.ModelAdmin):
         (
             _("Form Configuration"),
             {
-                "fields": ("form_config",),
+                "fields": ("form_config", "hide_expert_mode"),
                 "description": _(
                     "Optional custom form configuration. When provided, this will be used instead of auto-generating the form from the OpenAPI spec."
                 ),

src/servala/core/migrations/0014_hide_billing_address.py

@@ -33,7 +33,10 @@ class Migration(migrations.Migration):
             name="user_info",
             field=models.JSONField(
                 blank=True,
-                help_text='Array of info objects: [{"title": "…", "content": "…", "help_text": "…"}]. The help_text field is optional and will be shown as a hover popover on an info icon.',
+                help_text=(
+                    'Array of info objects: [{"title": "…", "content": "…", "help_text": "…"}]. '
+                    "The help_text field is optional and will be shown as a hover popover on an info icon."
+                ),
                 null=True,
                 verbose_name="User Information",
             ),

src/servala/core/migrations/0015_add_hide_expert_mode_to_service_definition.py

@@ -0,0 +1,25 @@
+# Generated by Django 5.2.8 on 2025-11-14 15:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0014_hide_billing_address"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="servicedefinition",
+            name="hide_expert_mode",
+            field=models.BooleanField(
+                default=False,
+                help_text=(
+                    "When enabled, the 'Show Expert Mode' toggle will be hidden and only the custom form configuration will be available. "
+                    "Only applies when a custom form configuration is provided."
+                ),
+                verbose_name="Disable Expert Mode",
+            ),
+        ),
+    ]

src/servala/core/models/service.py

@@ -370,6 +370,14 @@ class ServiceDefinition(ServalaModelMixin, models.Model):
         null=True,
         blank=True,
     )
+    hide_expert_mode = models.BooleanField(
+        default=False,
+        verbose_name=_("Disable Expert Mode"),
+        help_text=_(
+            "When enabled, the 'Show Expert Mode' toggle will be hidden and only the custom form "
+            "configuration will be available. Only applies when a custom form configuration is provided."
+        ),
+    )
     service = models.ForeignKey(
         to="Service",
         on_delete=models.CASCADE,

src/servala/frontend/templates/frontend/organizations/service_instance_update.html

@@ -13,7 +13,7 @@
     <a href="{{ instance.urls.base }}" class="btn btn-secondary me-1 mb-1">{% translate "Back" %}</a>
 {% endblock page_title_extra %}
 {% partialdef service-form %}
-{% if form %}
+{% if form or custom_form %}
     <div class="card">
         <div class="card-header d-flex align-items-center"></div>
         <div class="card-body">
@@ -31,7 +31,7 @@
 {% block content %}
     <section class="section">
         <div class="card">
-            {% if not form %}
+            {% if not form and not custom_form %}
                 <div class="alert alert-warning" role="alert">
                     {% translate "Cannot update this service instance because its details could not be retrieved from the underlying system. It might have been deleted externally." %}
                 </div>

src/servala/frontend/templates/includes/tabbed_fieldset_form.html

@@ -6,7 +6,7 @@
       {% if form_action %}action="{{ form_action }}"{% endif %}>
     {% csrf_token %}
     {% include "frontend/forms/errors.html" %}
-    {% if form %}
+    {% if form and expert_form and not hide_expert_mode %}
         <div class="mb-3 text-end">
             <a href="#"
                class="text-muted small"
@@ -81,7 +81,7 @@
             </div>
         {% endif %}
     </div>
-    {% if expert_form %}
+    {% if expert_form and not hide_expert_mode %}
         <div id="expert-form-container"
              class="expert-crd-form"
              style="{% if form %}display:none{% endif %}">
@@ -144,6 +144,6 @@
     </div>
 </form>
 <script defer src="{% static 'js/bootstrap-tabs.js' %}"></script>
-{% if form %}
+{% if form and not hide_expert_mode %}
     <script defer src="{% static 'js/expert-mode.js' %}"></script>
 {% endif %}

src/servala/frontend/views/service.py

@@ -167,7 +167,11 @@ class ServiceOfferingDetailView(OrganizationViewMixin, HtmxViewMixin, DetailView
         }
 
     def get_instance_form(self, ignore_data=False):
-        if not self.context_object or not self.context_object.model_form_class:
+        if (
+            not self.context_object
+            or not self.context_object.model_form_class
+            or self.hide_expert_mode
+        ):
             return
 
         return self.context_object.model_form_class(
@@ -187,11 +191,21 @@ class ServiceOfferingDetailView(OrganizationViewMixin, HtmxViewMixin, DetailView
         # vs "expert form" = auto-generated (all technical fields)
         return self.request.POST.get("active_form", "expert") == "custom"
 
+    @cached_property
+    def hide_expert_mode(self):
+        return (
+            self.context_object
+            and self.context_object.service_definition
+            and self.context_object.service_definition.form_config
+            and self.context_object.service_definition.hide_expert_mode
+        )
+
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
         context["select_form"] = self.select_form
         context["has_control_planes"] = self.planes.exists()
         context["selected_plane"] = self.selected_plane
+        context["hide_expert_mode"] = self.hide_expert_mode
         if self.request.method == "POST":
             if self.is_custom_form:
                 context["service_form"] = self.get_instance_form(ignore_data=True)
@@ -441,6 +455,8 @@ class ServiceInstanceUpdateView(
         return kwargs
 
     def get_form(self, *args, ignore_data=False, **kwargs):
+        if self.hide_expert_mode:
+            return
         if not ignore_data:
             return super().get_form(*args, **kwargs)
         cls = self.get_form_class()
@@ -477,8 +493,19 @@ class ServiceInstanceUpdateView(
             return self.form_valid(form)
         return self.form_invalid(form)
 
+    @cached_property
+    def hide_expert_mode(self):
+        return (
+            self.object
+            and self.object.context
+            and self.object.context.service_definition
+            and self.object.context.service_definition.form_config
+            and self.object.context.service_definition.hide_expert_mode
+        )
+
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
+        context["hide_expert_mode"] = self.hide_expert_mode
         if self.request.method == "POST":
             if self.is_custom_form:
                 context["custom_form"] = self.get_custom_form()

src/tests/test_views.py

@@ -2,6 +2,7 @@ import pytest
 
 from servala.core.models.service import CloudProvider, ServiceOffering
 
+
 @pytest.mark.parametrize(
     "url,redirect",
     (