diff --git a/spec/controllers/admin/enterprises_controller_spec.rb b/spec/controllers/admin/enterprises_controller_spec.rb
index 4caf3e38d7..415f75cc2a 100644
--- a/spec/controllers/admin/enterprises_controller_spec.rb
+++ b/spec/controllers/admin/enterprises_controller_spec.rb
@@ -409,6 +409,16 @@ RSpec.describe Admin::EnterprisesController, type: :controller do
         distributor.reload
         expect(distributor.users).to include user
       end
+
+      it "allows 'external_billing_id' to be changed" do
+        allow(controller).to receive_messages spree_current_user: admin_user
+        enterprise_params =
+          { id: profile_enterprise, enterprise: { external_billing_id: 'INV123456' } }
+
+        spree_put :update, enterprise_params
+        profile_enterprise.reload
+        expect(profile_enterprise.external_billing_id).to eq 'INV123456'
+      end
     end
 
     context "geocoding" do
diff --git a/spec/helpers/admin/enterprises_helper_spec.rb b/spec/helpers/admin/enterprises_helper_spec.rb
index aae01ab5ea..36bd1b5085 100644
--- a/spec/helpers/admin/enterprises_helper_spec.rb
+++ b/spec/helpers/admin/enterprises_helper_spec.rb
@@ -33,5 +33,13 @@ RSpec.describe Admin::EnterprisesHelper, type: :helper do
       user.enterprises << enterprise
       expect(visible_items.pluck(:name)).to include "connected_apps"
     end
+
+    context 'when user is an admin' do
+      let(:user) { create(:admin_user) }
+
+      it "includes admin-only item" do
+        expect(visible_items.pluck(:name)).to include "admin_only"
+      end
+    end
   end
 end