diff --git a/addons/website_sale_product_configurator/controllers/main.py b/addons/website_sale_product_configurator/controllers/main.py
index 343ec003402..055a06d17bc 100644
--- a/addons/website_sale_product_configurator/controllers/main.py
+++ b/addons/website_sale_product_configurator/controllers/main.py
@@ -22,7 +22,7 @@ class WebsiteSaleProductConfiguratorController(Controller):
 
         already_configured = bool(combination)
         if not force_dialog and not has_optional_products and (
-            product.product_variant_count <= 1 or already_configured
+            not product.has_configurable_attributes or already_configured
         ):
             # The modal is not shown if there are no optional products and
             # the main product either has no variants or is already configured
diff --git a/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_only_dynamic_attributes.js b/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_only_dynamic_attributes.js
new file mode 100644
index 00000000000..a918893f14e
--- /dev/null
+++ b/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_only_dynamic_attributes.js
@@ -0,0 +1,29 @@
+/** @odoo-module **/
+
+import { registry } from "@web/core/registry";
+import tourUtils from "@website_sale/js/tours/tour_utils";
+
+registry.category("web_tour.tours").add('tour_configurator_quick_add_only_no_dynamic_attributes', {
+    test: true,
+    url: '/shop',
+    steps: () => [
+        ...tourUtils.searchProduct("Short (TEST)"),
+        {
+            content: "open configurator",
+            trigger: '.oe_product:has(a:contains("Short (TEST)")) div.o_wsale_product_btn a',
+        },
+        {
+            content: "select M dynamic attribute",
+            trigger: '.oe_advanced_configurator_modal label:contains("M dynamic") input',
+        },
+        {
+            content: "Go through the modal window of the product configurator",
+            extra_trigger: '.oe_advanced_configurator_modal strong:contains("Short (TEST) (M dynamic)")',
+            trigger: 'button span:contains(Proceed to Checkout)',
+        },
+        tourUtils.assertCartContains({
+            productName: 'Short (TEST) (M dynamic)',
+            backend: false,
+        }),
+    ]
+});
diff --git a/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_only_no_variant_attributes.js b/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_only_no_variant_attributes.js
new file mode 100644
index 00000000000..434fcf0823f
--- /dev/null
+++ b/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_only_no_variant_attributes.js
@@ -0,0 +1,29 @@
+/** @odoo-module **/
+
+import { registry } from "@web/core/registry";
+import tourUtils from "@website_sale/js/tours/tour_utils";
+
+registry.category("web_tour.tours").add('tour_configurator_quick_add_only_no_variant_attributes', {
+    test: true,
+    url: '/shop',
+    steps: () => [
+        ...tourUtils.searchProduct("Short (TEST)"),
+        {
+            content: "open configurator",
+            trigger: '.oe_product:has(a:contains("Short (TEST)")) div.o_wsale_product_btn a',
+        },
+        {
+            content: "select M dynamic attribute",
+            trigger: '.oe_advanced_configurator_modal label:contains("M never") input',
+        },
+        {
+            content: "Go through the modal window of the product configurator",
+            trigger: 'button span:contains(Continue Shopping)',
+        },
+        {
+            content: "check that the novariants/custom attributes are displayed.",
+            trigger: '.toast-body span.text-muted.small:contains("Never attribute size: M never")',
+            isCheck: true,
+        },
+    ]
+});
diff --git a/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_single_custom_attribute.js b/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_single_custom_attribute.js
new file mode 100644
index 00000000000..31e4736fa21
--- /dev/null
+++ b/addons/website_sale_product_configurator/static/tests/tours/website_sale_configurator_single_custom_attribute.js
@@ -0,0 +1,29 @@
+/** @odoo-module **/
+
+import { registry } from "@web/core/registry";
+import tourUtils from "@website_sale/js/tours/tour_utils";
+
+registry.category("web_tour.tours").add('tour_configurator_quick_add_single_custom_attribute', {
+    test: true,
+    url: '/shop',
+    steps: () => [
+        ...tourUtils.searchProduct("Short (TEST)"),
+        {
+            content: "open configurator",
+            trigger: '.oe_product:has(a:contains("Short (TEST)")) div.o_wsale_product_btn a',
+        },
+        {
+            trigger: 'input.variant_custom_value',
+            run: 'text TEST',
+        },
+        {
+            content: "Go through the modal window of the product configurator",
+            trigger: 'button span:contains(Continue Shopping)',
+        },
+        {
+            content: "check that the novariants/custom attributes are displayed.",
+            trigger: '.toast-body span.text-muted.small:contains("Always attribute size: Yes never custom: TEST")',
+            isCheck: true,
+        },
+    ]
+});
diff --git a/addons/website_sale_product_configurator/tests/test_website_sale_configurator.py b/addons/website_sale_product_configurator/tests/test_website_sale_configurator.py
index 65666e43cba..faa2cec73ee 100644
--- a/addons/website_sale_product_configurator/tests/test_website_sale_configurator.py
+++ b/addons/website_sale_product_configurator/tests/test_website_sale_configurator.py
@@ -1,9 +1,10 @@
-# -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from odoo.fields import Command
 from odoo.tests import tagged
+
+from odoo.addons.base.tests.common import HttpCaseWithUserDemo, HttpCaseWithUserPortal
 from odoo.addons.sale_product_configurator.tests.common import TestProductConfiguratorCommon
-from odoo.addons.base.tests.common import HttpCaseWithUserPortal, HttpCaseWithUserDemo
 
 
 @tagged('post_install', '-at_install')
@@ -146,3 +147,86 @@ class TestWebsiteSaleProductConfigurator(TestProductConfiguratorCommon, HttpCase
         new_sale_order = self.env['sale.order'].search([]) - old_sale_order
         new_order_line = new_sale_order.order_line
         self.assertEqual(new_order_line.name, 'Short (TEST) (M always, M dynamic)\n\nNever attribute size: M never\nNever attribute size custom: Yes never custom: TEST')
+
+    def test_03_only_no_variant_attributes(self):
+        """ Test that the configurator dialog is opened when a product with only no variant
+            attributes is added from the /shop page.
+        """
+        self.env.ref('website_sale.products_add_to_cart').active = True  # Enable quick add button
+        no_variant_attribute = self.env['product.attribute'].create({
+            'name': 'Never attribute size',
+            'display_type': 'radio',
+            'create_variant': 'no_variant',
+            'value_ids': [
+                Command.create({'name': 'S never'}),
+                Command.create({'name': 'M never'}),
+            ]
+        })
+        self.env['product.template'].create({
+            'name': 'Short (TEST)',
+            'website_published': True,
+            'attribute_line_ids': [
+                Command.create({
+                    'attribute_id': no_variant_attribute.id,
+                    'value_ids': [Command.set(no_variant_attribute.value_ids.ids)],
+                })
+            ],
+        })
+
+        self.start_tour("/shop", 'tour_configurator_quick_add_only_no_variant_attributes')
+
+    def test_04_only_dynamic_attributes(self):
+        """ Test that the configurator dialog is opened when a product with only dynamic
+            attributes is added from the /shop page.
+        """
+        self.env.ref('website_sale.products_add_to_cart').active = True  # Enable quick add button
+        dynamic_attribute = self.env['product.attribute'].create({
+            'name': 'Dynamic attribute size',
+            'display_type': 'radio',
+            'create_variant': 'dynamic',
+            'value_ids': [
+                Command.create({'name': 'S dynamic'}),
+                Command.create({'name': 'M dynamic'}),
+            ]
+        })
+        self.env['product.template'].create({
+            'name': 'Short (TEST)',
+            'website_published': True,
+            'attribute_line_ids': [
+                Command.create({
+                    'attribute_id': dynamic_attribute.id,
+                    'value_ids': [Command.set(dynamic_attribute.value_ids.ids)],
+                })
+            ],
+        })
+
+        self.start_tour("/shop", 'tour_configurator_quick_add_only_no_dynamic_attributes')
+
+    def test_05_single_custom_attribute(self):
+        """ Test that the configurator dialog is opened when a product with a single custom
+            attributes is added from the /shop page.
+        """
+        self.env.ref('website_sale.products_add_to_cart').active = True  # Enable quick add button
+        attribute = self.env['product.attribute'].create({
+            'name': 'Always attribute size',
+            'display_type': 'radio',
+            'create_variant': 'always',
+            'value_ids': [
+                Command.create({
+                    'name': 'Yes never custom',
+                    'is_custom': True,
+                }),
+            ]
+        })
+        self.env['product.template'].create({
+            'name': 'Short (TEST)',
+            'website_published': True,
+            'attribute_line_ids': [
+                Command.create({
+                    'attribute_id': attribute.id,
+                    'value_ids': [Command.set(attribute.value_ids.ids)],
+                })
+            ],
+        })
+
+        self.start_tour("/shop", 'tour_configurator_quick_add_single_custom_attribute')
diff --git a/addons/website_sale_product_configurator/views/templates.xml b/addons/website_sale_product_configurator/views/templates.xml
index 775ed93bcf7..3fe01e55e5f 100644
--- a/addons/website_sale_product_configurator/views/templates.xml
+++ b/addons/website_sale_product_configurator/views/templates.xml
@@ -77,7 +77,7 @@
                         <t t-if="product and not combination">
                             <t t-set="combination" t-value="product_template._get_first_possible_combination()"/>
                         </t>
-                        <t t-if="combination and not already_configured" t-call="website_sale.variants">
+                        <t t-if="not already_configured" t-call="website_sale.variants">
                             <t t-set="ul_class" t-valuef="flex-column" />
                             <t t-set="product" t-value="product_template"/>
                         </t>