diff --git a/app/models/solidus_friendly_promotions/friendly_promotion_adjuster.rb b/app/models/solidus_friendly_promotions/friendly_promotion_adjuster.rb
index 48ce83db..621b09ad 100644
--- a/app/models/solidus_friendly_promotions/friendly_promotion_adjuster.rb
+++ b/app/models/solidus_friendly_promotions/friendly_promotion_adjuster.rb
@@ -13,7 +13,8 @@ def initialize(order, dry_run_promotion: nil)
     def call
       order.reset_current_discounts
 
-      return order if order.shipped?
+      return order if (!SolidusFriendlyPromotions.config.recalculate_complete_orders && order.complete?) || order.shipped?
+
       discounted_order = DiscountOrder.new(order, promotions, dry_run: dry_run).call
 
       PersistDiscountedOrder.new(discounted_order).call unless dry_run
diff --git a/lib/solidus_friendly_promotions/configuration.rb b/lib/solidus_friendly_promotions/configuration.rb
index 65e1fb34..ee877bf5 100644
--- a/lib/solidus_friendly_promotions/configuration.rb
+++ b/lib/solidus_friendly_promotions/configuration.rb
@@ -5,10 +5,12 @@
 module SolidusFriendlyPromotions
   class Configuration < Spree::Preferences::Configuration
     attr_accessor :sync_order_promotions
+    attr_accessor :recalculate_complete_orders
     attr_accessor :promotion_calculators
 
     def initialize
       @sync_order_promotions = true
+      @recalculate_complete_orders = true
       @promotion_calculators = NestedClassSet.new
     end
 
diff --git a/spec/lib/solidus_friendly_promotions/configuration_spec.rb b/spec/lib/solidus_friendly_promotions/configuration_spec.rb
index 83a0d105..0c4d185e 100644
--- a/spec/lib/solidus_friendly_promotions/configuration_spec.rb
+++ b/spec/lib/solidus_friendly_promotions/configuration_spec.rb
@@ -54,4 +54,16 @@
       config.sync_order_promotions = true
     end
   end
+
+  describe ".recalculate_complete_orders" do
+    subject { config.recalculate_complete_orders }
+
+    it { is_expected.to be true }
+
+    it "can be set to false" do
+      config.recalculate_complete_orders = false
+      expect(subject).to be false
+      config.recalculate_complete_orders = true
+    end
+  end
 end
diff --git a/spec/models/solidus_friendly_promotions/friendly_promotion_adjuster_spec.rb b/spec/models/solidus_friendly_promotions/friendly_promotion_adjuster_spec.rb
index d17b44e4..fcf83efe 100644
--- a/spec/models/solidus_friendly_promotions/friendly_promotion_adjuster_spec.rb
+++ b/spec/models/solidus_friendly_promotions/friendly_promotion_adjuster_spec.rb
@@ -33,6 +33,33 @@
           subject
           expect(adjustable.current_discounts).to be_empty
         end
+
+        context "if order is complete but not shipped" do
+          let(:line_item) { order.line_items.first }
+          let(:order) { create(:order_ready_to_ship) }
+
+          it "creates the adjustment" do
+            expect {
+              subject
+              order.save
+            }.to change { adjustable.reload.adjustments.length }.by(1)
+          end
+
+          context "but the preference to recalculate complete orders is set to false" do
+            around do |example|
+              SolidusFriendlyPromotions.config.recalculate_complete_orders = false
+              example.run
+              SolidusFriendlyPromotions.config.recalculate_complete_orders = true
+            end
+
+            it "will not create the adjustment" do
+              expect {
+                subject
+                order.save
+              }.not_to change { adjustable.reload.adjustments.length }
+            end
+          end
+        end
       end
 
       context "with a calculator that returns zero" do