Skip experimentation on self-managed

For in product marketing emails

app/services/namespaces/in_product_marketing_emails_service.rb

@@ -41,9 +41,11 @@ module Namespaces
     attr_reader :track, :interval, :in_product_marketing_email_records
 
     def send_email_for_group(group)
-      experiment_enabled_for_group = experiment_enabled_for_group?(group)
-      experiment_add_group(group, experiment_enabled_for_group)
-      return unless experiment_enabled_for_group
+      if Gitlab.com?
+        experiment_enabled_for_group = experiment_enabled_for_group?(group)
+        experiment_add_group(group, experiment_enabled_for_group)
+        return unless experiment_enabled_for_group
+      end
 
       users_for_group(group).each do |user|
         if can_perform_action?(user, group)

spec/services/namespaces/in_product_marketing_emails_service_spec.rb

@@ -85,26 +85,46 @@ RSpec.describe Namespaces::InProductMarketingEmailsService, '#execute' do
   end
 
   describe 'experimentation' do
-    context 'when the experiment is enabled' do
-      it 'adds the group as an experiment subject in the experimental group' do
-        expect(Experiment).to receive(:add_group)
-          .with(:in_product_marketing_emails, variant: :experimental, group: group)
+    context 'when on dotcom' do
+      before do
+        allow(::Gitlab).to receive(:com?).and_return(true)
+      end
 
-        execute_service
+      context 'when the experiment is enabled' do
+        it 'adds the group as an experiment subject in the experimental group' do
+          expect(Experiment).to receive(:add_group)
+            .with(:in_product_marketing_emails, variant: :experimental, group: group)
+
+          execute_service
+        end
       end
-    end
 
-    context 'when the experiment is disabled' do
-      let(:experiment_enabled) { false }
+      context 'when the experiment is disabled' do
+        let(:experiment_enabled) { false }
+
+        it 'adds the group as an experiment subject in the control group' do
+          expect(Experiment).to receive(:add_group)
+            .with(:in_product_marketing_emails, variant: :control, group: group)
 
-      it 'adds the group as an experiment subject in the control group' do
-        expect(Experiment).to receive(:add_group)
-          .with(:in_product_marketing_emails, variant: :control, group: group)
+          execute_service
+        end
 
-        execute_service
+        it { is_expected.not_to send_in_product_marketing_email }
       end
 
-      it { is_expected.not_to send_in_product_marketing_email }
+      context 'when not on dotcom' do
+        before do
+          allow(::Gitlab).to receive(:com?).and_return(false)
+        end
+
+        it 'does not add the group as an experiment subject' do
+          expect(Experiment).not_to receive(:add_group)
+
+          execute_service
+        end
+
+        it { is_expected.to send_in_product_marketing_email(user.id, group.id, :create, 0) }
+      end
     end
   end