diff --git a/app/models/order_cycle.rb b/app/models/order_cycle.rb
index 7b7d1044d5..c6e2d4a0aa 100644
--- a/app/models/order_cycle.rb
+++ b/app/models/order_cycle.rb
@@ -29,6 +29,7 @@ class OrderCycle < ApplicationRecord
   attr_accessor :incoming_exchanges, :outgoing_exchanges
 
   before_update :reset_processed_at, if: :will_save_change_to_orders_close_at?
+  after_save :sync_subscriptions, if: :opening?
 
   validates :name, :coordinator_id, presence: true
   validate :orders_close_at_after_orders_open_at?
@@ -159,6 +160,7 @@ class OrderCycle < ApplicationRecord
     oc.schedule_ids = schedule_ids
     oc.save!
     exchanges.each { |e| e.clone!(oc) }
+    sync_subscriptions
     oc.reload
   end
 
@@ -273,6 +275,22 @@ class OrderCycle < ApplicationRecord
 
   private
 
+  def opening?
+    (open? || upcoming?) && saved_change_to_orders_close_at? && was_closed?
+  end
+
+  def was_closed?
+    orders_close_at_previously_was.blank? || Time.zone.now > orders_close_at_previously_was
+  end
+
+  def sync_subscriptions
+    return unless schedule_ids.any?
+
+    OrderManagement::Subscriptions::ProxyOrderSyncer.new(
+      Subscription.where(schedule_id: schedule_ids)
+    ).sync!
+  end
+
   def orders_close_at_after_orders_open_at?
     return if orders_open_at.blank? || orders_close_at.blank?
     return if orders_close_at > orders_open_at
diff --git a/spec/models/order_cycle_spec.rb b/spec/models/order_cycle_spec.rb
index ba89bf282a..4ebb79a9a1 100644
--- a/spec/models/order_cycle_spec.rb
+++ b/spec/models/order_cycle_spec.rb
@@ -550,6 +550,42 @@ describe OrderCycle do
     end
   end
 
+  describe "syncing subscriptions" do
+    let!(:oc) {
+      create(:simple_order_cycle, orders_open_at: 1.week.ago, orders_close_at: 1.day.ago)
+    }
+    let(:schedule) { create(:schedule, order_cycles: [oc]) }
+    let!(:subscription) { create(:subscription, schedule: schedule, with_items: true) }
+
+    it "syncs subscriptions when transitioning from closed to open" do
+      expect(OrderManagement::Subscriptions::ProxyOrderSyncer).to receive(:new).and_call_original
+
+      expect{
+        oc.update(orders_close_at: 1.week.from_now)
+      }.to change{ ProxyOrder.count }
+    end
+
+    it "syncs subscriptions when transitioning from closed to upcoming" do
+      expect(OrderManagement::Subscriptions::ProxyOrderSyncer).to receive(:new).and_call_original
+
+      expect {
+        oc.update(orders_open_at: 1.day.from_now, orders_close_at: 1.week.from_now)
+      }.to change{ ProxyOrder.count }
+    end
+
+    context "when the current dates are nil" do
+      before { oc.update(orders_open_at: nil, orders_close_at: nil) }
+
+      it "syncs subscriptions when transitioning from closed to open" do
+        expect(OrderManagement::Subscriptions::ProxyOrderSyncer).to receive(:new).and_call_original
+
+        expect{
+          oc.update(orders_open_at: 1.day.ago, orders_close_at: 1.week.from_now)
+        }.to change{ ProxyOrder.count }
+      end
+    end
+  end
+
   describe "processed_at " do
     let!(:oc) {
       create(:simple_order_cycle, orders_open_at: 1.week.ago, orders_close_at: 1.day.ago, processed_at: 1.hour.ago)