diff --git a/app/models/service.rb b/app/models/service.rb
index c49e0869b21cc7817735f42278b0b711e0b83dfb..b0bad81d584340c66281c5b38d75b3b05234e131 100644
--- a/app/models/service.rb
+++ b/app/models/service.rb
@@ -413,6 +413,10 @@ def can_test?
     !instance? && !group_id
   end
 
+  def project_level?
+    project_id.present?
+  end
+
   def parent
     project || group
   end
diff --git a/app/views/projects/services/mattermost_slash_commands/_help.html.haml b/app/views/projects/services/mattermost_slash_commands/_help.html.haml
index 1005d9f7990d94d2729e2a2782f6f46704946372..ae0f6c9ef1895739507089b65e69e86604d26560 100644
--- a/app/views/projects/services/mattermost_slash_commands/_help.html.haml
+++ b/app/views/projects/services/mattermost_slash_commands/_help.html.haml
@@ -10,8 +10,8 @@
     %p.inline
       = s_("MattermostService|See list of available commands in Mattermost after setting up this service, by entering")
     %kbd.inline /<trigger> help
-    - unless enabled || @service.template?
+    - if !enabled && @service.project_level?
       = render 'projects/services/mattermost_slash_commands/detailed_help', subject: @service
 
-- if enabled && !@service.template?
+- if enabled && @service.project_level?
   = render 'projects/services/mattermost_slash_commands/installation_info', subject: @service
diff --git a/app/views/projects/services/slack_slash_commands/_help.html.haml b/app/views/projects/services/slack_slash_commands/_help.html.haml
index 67c43bd2f3361738f0ff6f99554eeaa9948ac0aa..a8fb0d55c0d21e6b7b28b42cdbb43d70cf7e0e43 100644
--- a/app/views/projects/services/slack_slash_commands/_help.html.haml
+++ b/app/views/projects/services/slack_slash_commands/_help.html.haml
@@ -11,7 +11,7 @@
     %p.inline
       = s_("SlackService|See list of available commands in Slack after setting up this service, by entering")
     %kbd.inline /<command> help
-    - unless @service.template?
+    - if @service.project_level?
       %p= _("To set up this service:")
       %ul.list-unstyled.indent-list
         %li
diff --git a/changelogs/unreleased/298854-gitlab-returns-error-500-when-visiting-admin-area-settings-integra.yml b/changelogs/unreleased/298854-gitlab-returns-error-500-when-visiting-admin-area-settings-integra.yml
new file mode 100644
index 0000000000000000000000000000000000000000..a49eb6f1c3e601c2efb1fa08c14cb2d4de991201
--- /dev/null
+++ b/changelogs/unreleased/298854-gitlab-returns-error-500-when-visiting-admin-area-settings-integra.yml
@@ -0,0 +1,5 @@
+---
+title: Hide project-specific views on group / instance level integrations
+merge_request: 57381
+author:
+type: fixed
diff --git a/ee/app/views/projects/services/gitlab_slack_application/_help.html.haml b/ee/app/views/projects/services/gitlab_slack_application/_help.html.haml
index d2ae830a0248d55c6e664ff75bc81af3bcf401ea..03113c962d68cb6e0104adcdf9795247e2251af0 100644
--- a/ee/app/views/projects/services/gitlab_slack_application/_help.html.haml
+++ b/ee/app/views/projects/services/gitlab_slack_application/_help.html.haml
@@ -6,5 +6,5 @@
     %p.inline
       = _("See the list of available commands in Slack after setting up this service by entering")
   %kbd.inline /gitlab help
-  - unless @service.template? || @service.instance?
+  - if @service.project_level?
     = render "projects/services/#{@service.to_param}/slack_integration_form"
diff --git a/spec/models/service_spec.rb b/spec/models/service_spec.rb
index 9ffefd4bbf79b8167701116ecd6c69600be99bf2..d8eb4ebc432b2e31a1c37068c0313abade8d5f1e 100644
--- a/spec/models/service_spec.rb
+++ b/spec/models/service_spec.rb
@@ -202,6 +202,16 @@
     end
   end
 
+  describe '#project_level?' do
+    it 'is true when service has a project' do
+      expect(build(:service, project: project)).to be_project_level
+    end
+
+    it 'is false when service has no project' do
+      expect(build(:service, project: nil)).not_to be_project_level
+    end
+  end
+
   describe '.find_or_initialize_non_project_specific_integration' do
     let!(:service1) { create(:jira_service, project_id: nil, group_id: group.id) }
     let!(:service2) { create(:jira_service) }