diff --git a/addons/website_slides_survey/i18n/website_slides_survey.pot b/addons/website_slides_survey/i18n/website_slides_survey.pot
index 9742d7370f0..794b9dd4e1c 100644
--- a/addons/website_slides_survey/i18n/website_slides_survey.pot
+++ b/addons/website_slides_survey/i18n/website_slides_survey.pot
@@ -15,6 +15,12 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: \n"
 
+#. module: website_slides_survey
+#: code:addons/website_slides_survey/models/survey_survey.py:0
+#, python-format
+msgid "- %s (Courses - %s)"
+msgstr ""
+
 #. module: website_slides_survey
 #: model_terms:ir.ui.view,arch_db:website_slides_survey.survey_survey_view_kanban
 msgid ""
@@ -412,8 +418,8 @@ msgstr ""
 #: code:addons/website_slides_survey/models/survey_survey.py:0
 #, python-format
 msgid ""
-"The Certification '%(certification_name)s' cannot be deleted because it is "
-"still being used by the Course(s) '%(courses_names)s'"
+"Any Survey listed below is currently used as a Course Certification and cannot be deleted:\n"
+"%s"
 msgstr ""
 
 #. module: website_slides_survey
diff --git a/addons/website_slides_survey/models/survey_survey.py b/addons/website_slides_survey/models/survey_survey.py
index 4024afd0716..e3800c5d94e 100644
--- a/addons/website_slides_survey/models/survey_survey.py
+++ b/addons/website_slides_survey/models/survey_survey.py
@@ -28,11 +28,14 @@ class Survey(models.Model):
 
     @api.ondelete(at_uninstall=False)
     def _unlink_except_linked_to_course(self):
-        slides = self.slide_ids.filtered(lambda slide: slide.slide_type == "certification").exists()
-        if slides:
-            raise ValidationError(_("The Certification '%(certification_name)s' cannot be deleted because it is still being used by the Course(s) '%(courses_names)s'",
-                                    certification_name=self.title,
-                                    courses_names=', '.join(slides.mapped('channel_id.name'))))
+        # we consider it's ok to show certification names for people trying to delete courses
+        # even if they don't have access to those surveys hence the sudo usage
+        certifications = self.sudo().slide_ids.filtered(lambda slide: slide.slide_type == "certification").mapped('survey_id').exists()
+        if certifications:
+            certifications_course_mapping = [_('- %s (Courses - %s)', certi.title, '; '.join(certi.slide_channel_ids.mapped('name'))) for certi in certifications]
+            raise ValidationError(_(
+                'Any Survey listed below is currently used as a Course Certification and cannot be deleted:\n%s',
+                '\n'.join(certifications_course_mapping)))
 
     # ---------------------------------------------------------
     # Actions
diff --git a/addons/website_slides_survey/tests/test_course_certification_unlink.py b/addons/website_slides_survey/tests/test_course_certification_unlink.py
index 94f08a4e6ea..bfaaf8ed864 100644
--- a/addons/website_slides_survey/tests/test_course_certification_unlink.py
+++ b/addons/website_slides_survey/tests/test_course_certification_unlink.py
@@ -16,17 +16,26 @@ class TestSurvey(SlidesCase):
 
     @users('user_manager')
     def test_unlink(self):
-        self.certification = self.env['slide.slide'].create({
+        [certification, _dummy] = self.env['slide.slide'].create([{
             'name': 'Certification',
             'slide_type': 'certification',
             'channel_id': self.channel.id,
             'survey_id': self.survey.id,
-        })
+        }, {
+            'name': 'Second Certification',
+            'slide_type': 'certification',
+            'channel_id': self.channel.id,
+            'survey_id': self.survey2.id,
+        }])
 
-        with self.assertRaises(ValidationError, msg="The error is unexpected"):
-            self.survey.unlink()
+        with self.assertRaises(
+            ValidationError,
+            msg="Should raise when trying to unlink a survey linked to courses"
+        ):
+            (self.survey | self.survey2).unlink()
 
         self.assertTrue(self.survey.exists())
-        self.certification.survey_id = self.survey2
+        self.assertTrue(self.survey2.exists())
+        certification.survey_id = self.survey2
         self.survey.unlink()
         self.assertFalse(self.survey.exists())