diff --git a/app/models/ability.rb b/app/models/ability.rb
index 08ef50a9..26ce7bf5 100644
--- a/app/models/ability.rb
+++ b/app/models/ability.rb
@@ -152,6 +152,8 @@ class Ability
       can :manage, Registration, conference_id: conf_ids_for_organizer
       # To access conference/proposals
       can :manage, Event, program: { conference_id: conf_ids_for_organizer }
+      can :manage, Commercial, commercialable_type: 'Event',
+                               commercialable_id:   Event.where(program_id: Program.where(conference_id: conf_ids_for_organizer).pluck(:id)).pluck(:id)
       # To access comment link in menu bar
       can :index, Comment, commentable_type: 'Event',
                            commentable_id:   Event.where(program_id: Program.where(conference_id: conf_ids_for_organizer).pluck(:id)).pluck(:id)
@@ -163,6 +165,8 @@ class Ability
                            commentable_id:   Event.where(program_id: Program.where(conference_id: conf_ids_for_cfp).pluck(:id)).pluck(:id)
       # To access conference/proposals
       can :manage, Event, program: { conference_id: conf_ids_for_cfp }
+      can :manage, Commercial, commercialable_type: 'Event',
+                               commercialable_id:   Event.where(program_id: Program.where(conference_id: conf_ids_for_cfp).pluck(:id)).pluck(:id)
     end
 
     if conf_ids_for_info_desk
diff --git a/spec/ability/ability_spec.rb b/spec/ability/ability_spec.rb
index 0f3438ac..6abf860f 100644
--- a/spec/ability/ability_spec.rb
+++ b/spec/ability/ability_spec.rb
@@ -264,5 +264,31 @@ describe 'User' do
       it{ should_not be_able_to(:edit, other_self_organized_track) }
       it{ should_not be_able_to(:update, other_self_organized_track) }
     end
+
+    context 'when user is organizer of conference' do
+      let(:conference) { create(:conference) }
+      let(:user) { create(:organizer, resource: conference) }
+      let(:event_in_conference) { create(:event, program: conference.program) }
+      let(:event_in_other_conference) { create(:event) }
+      let(:commercial_in_conference) { create(:commercial, commercialable: event_in_conference) }
+      let(:commercial_in_other_conference) { create(:commercial, commercialable: event_in_other_conference) }
+
+      it{ should be_able_to(:create, event_in_conference.commercials.new) }
+      it{ should be_able_to(:manage, commercial_in_conference) }
+      it{ should_not be_able_to(:manage, commercial_in_other_conference) }
+    end
+
+    context 'when user is on cfp team of conference' do
+      let(:conference) { create(:conference) }
+      let(:user) { create(:cfp_user, resource: conference) }
+      let(:event_in_conference) { create(:event, program: conference.program) }
+      let(:event_in_other_conference) { create(:event) }
+      let(:commercial_in_conference) { create(:commercial, commercialable: event_in_conference) }
+      let(:commercial_in_other_conference) { create(:commercial, commercialable: event_in_other_conference) }
+
+      it{ should be_able_to(:create, event_in_conference.commercials.new) }
+      it{ should be_able_to(:manage, commercial_in_conference) }
+      it{ should_not be_able_to(:manage, commercial_in_other_conference) }
+    end
   end
 end