diff --git a/CHANGELOG.md b/CHANGELOG.md
index 35c8582..9743dd5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,21 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased] - yyyy-mm-dd
 
+### Added
+
+### Changed
+
+### Fixed
+
+## [6.6.0] - 2024-06-17
+
+### Added
+
+- add option `strict_order`
+
+### Fixed
+- fix README
+
 ## [6.5.0] - 2024-06-05
 
 ### Added
diff --git a/README.md b/README.md
index 1603266..66e76fe 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,7 @@ Rails.application.config.outbox.tap do |config|
   config.paths << Rails.root.join("config/outbox.yml").to_s # optional; configuration file paths, deep merged at the application start, useful with Rails engines
 
   # optional (worker v2: default)
-  c.poller = ActiveSupport::OrderedOptions.new.tap do |pc|
+  config.poller = ActiveSupport::OrderedOptions.new.tap do |pc|
     # max parallel threads (per box-item, globally)
     pc.concurrency = 6
     # max threads count (per worker process)
@@ -152,7 +152,7 @@ Rails.application.config.outbox.tap do |config|
   end
 
   # optional (worker v2: default)
-  c.processor = ActiveSupport::OrderedOptions.new.tap do |pc|
+  config.processor = ActiveSupport::OrderedOptions.new.tap do |pc|
     # max threads count (per worker process)
     pc.threads_count = 4
     # maximum processing time of the batch, after which the batch will be considered hung and processing will be aborted
@@ -236,6 +236,7 @@ default: &default
       owner: my_outbox_item_team # optional, used in Yabeda metrics
       retention: P1W # retention period, https://en.wikipedia.org/wiki/ISO_8601#Durations
       max_retries: 3 # default 0, the number of retries before the item will be marked as failed
+      strict_order: false # optional, default
       transports: # transports section
         produce_message: # underscored transport class name
           # transport reserved options
@@ -255,6 +256,10 @@ production:
   <<: *default
   bucket_size: 256
 ```
+__CAUTION__:
+- ⚠️ If this option is enabled and an error occurs while processing a message in a bucket, 
+subsequent messages in that bucket won't be processed until the current message is either skipped or successfully processed
+- ⚠️ Cannot use `retry_strategies` and the `strict_order` option at the same time
 
 ```ruby
 # app/services/import_order.rb
diff --git a/app/models/sbmt/outbox/base_item.rb b/app/models/sbmt/outbox/base_item.rb
index 6a9ae63..a4084cb 100644
--- a/app/models/sbmt/outbox/base_item.rb
+++ b/app/models/sbmt/outbox/base_item.rb
@@ -6,7 +6,7 @@ class BaseItem < Outbox.active_record_base_class
       self.abstract_class = true
 
       class << self
-        delegate :owner, to: :config
+        delegate :owner, :strict_order, to: :config
 
         def box_type
           raise NotImplementedError
@@ -134,6 +134,7 @@ def retriable?
       end
 
       def max_retries_exceeded?
+        return false if config.strict_order
         return true unless retriable?
 
         errors_count > config.max_retries
diff --git a/app/models/sbmt/outbox/base_item_config.rb b/app/models/sbmt/outbox/base_item_config.rb
index 0db85c2..9ee5e68 100644
--- a/app/models/sbmt/outbox/base_item_config.rb
+++ b/app/models/sbmt/outbox/base_item_config.rb
@@ -16,7 +16,7 @@ def initialize(box_id:, box_name:)
       end
 
       def owner
-        return @owner if defined? @owner
+        return @owner if defined?(@owner)
 
         @owner = options[:owner].presence || yaml_config[:owner].presence
       end
@@ -57,7 +57,14 @@ def retry_strategies
         return @retry_strategies if defined?(@retry_strategies)
 
         configured_strategies = options[:retry_strategies]
-        strategies = configured_strategies.presence || %w[exponential_backoff latest_available]
+
+        raise ConfigError, "You cannot use retry_strategies and the strict_order option at the same time." if strict_order.present? && configured_strategies.present?
+
+        strategies = if strict_order.present? && configured_strategies.nil?
+          []
+        else
+          configured_strategies.presence || %w[exponential_backoff latest_available]
+        end
 
         @retry_strategies ||= Array.wrap(strategies).map do |str_name|
           "Sbmt::Outbox::RetryStrategies::#{str_name.camelize}".constantize
@@ -108,6 +115,12 @@ def transports
         end
       end
 
+      def strict_order
+        return @strict_order if defined?(@strict_order)
+
+        @strict_order = options[:strict_order].presence
+      end
+
       private
 
       attr_accessor :box_id, :box_name
diff --git a/lib/sbmt/outbox/v2/processor.rb b/lib/sbmt/outbox/v2/processor.rb
index 8114092..d485f61 100644
--- a/lib/sbmt/outbox/v2/processor.rb
+++ b/lib/sbmt/outbox/v2/processor.rb
@@ -68,15 +68,18 @@ def lock_task(scheduled_task)
         def process(task)
           lock_timer = Cutoff.new(lock_timeout)
           last_id = 0
+          strict_order = task.item_class.config.strict_order
 
           box_worker.item_execution_runtime.measure(task.yabeda_labels) do
             Outbox.database_switcher.use_master do
               task.ids.each do |id|
-                ProcessItem.call(task.item_class, id, worker_version: task.yabeda_labels[:worker_version])
+                result = ProcessItem.call(task.item_class, id, worker_version: task.yabeda_labels[:worker_version])
 
                 box_worker.job_items_counter.increment(task.yabeda_labels)
                 last_id = id
                 lock_timer.checkpoint!
+
+                break if strict_order == true && result.failure?
               end
             end
           end
diff --git a/lib/sbmt/outbox/version.rb b/lib/sbmt/outbox/version.rb
index 278e708..b3fe36d 100644
--- a/lib/sbmt/outbox/version.rb
+++ b/lib/sbmt/outbox/version.rb
@@ -2,6 +2,6 @@
 
 module Sbmt
   module Outbox
-    VERSION = "6.5.0"
+    VERSION = "6.6.0"
   end
 end
diff --git a/spec/lib/sbmt/outbox/v2/processor_spec.rb b/spec/lib/sbmt/outbox/v2/processor_spec.rb
index 14005e7..d7dee4b 100644
--- a/spec/lib/sbmt/outbox/v2/processor_spec.rb
+++ b/spec/lib/sbmt/outbox/v2/processor_spec.rb
@@ -77,6 +77,56 @@
 
         expect(processor.start).to be(Sbmt::Outbox::V2::ThreadPool::SKIPPED)
       end
+
+      context "when use option strict_order" do
+        context "when strict_order is true" do
+          before do
+            allow(task.item_class).to receive(:config).and_return(OpenStruct.new(strict_order: true))
+          end
+
+          it "stops processing on failure" do
+            expect(processor.send(:lock_manager)).to receive(:lock)
+              .with("sbmt:outbox:processor:inbox_item:0:lock", 1000)
+              .and_yield(task)
+
+            allow(Sbmt::Outbox::ProcessItem).to receive(:call).with(any_args).and_return(OpenStruct.new(failure?: true))
+
+            expect { processor.start }.to not_change(InboxItem.delivered, :count)
+              .and measure_yabeda_histogram(Yabeda.box_worker.item_execution_runtime).with_tags(name: "inbox_item", type: :inbox, worker_name: "processor", worker_version: 2)
+              .and increment_yabeda_counter(Yabeda.box_worker.job_items_counter).with_tags(name: "inbox_item", type: :inbox, worker_name: "processor", worker_version: 2).by(1)
+              .and not_increment_yabeda_counter(Yabeda.box_worker.job_timeout_counter)
+              .and not_increment_yabeda_counter(Yabeda.outbox.sent_counter)
+              .and not_update_yabeda_gauge(Yabeda.outbox.last_sent_event_id)
+              .and not_measure_yabeda_histogram(Yabeda.outbox.process_latency)
+              .and not_increment_yabeda_counter(Yabeda.outbox.error_counter)
+              .and not_increment_yabeda_counter(Yabeda.outbox.retry_counter)
+              .and not_increment_yabeda_counter(Yabeda.outbox.discarded_counter)
+              .and not_increment_yabeda_counter(Yabeda.outbox.fetch_error_counter)
+          end
+        end
+
+        context "when strict_order is false" do
+          it "continues processing on failure" do
+            expect(processor.send(:lock_manager)).to receive(:lock)
+              .with("sbmt:outbox:processor:inbox_item:0:lock", 1000)
+              .and_yield(task)
+
+            allow(Sbmt::Outbox::ProcessItem).to receive(:call).with(any_args).and_return(OpenStruct.new(failure?: true))
+
+            expect { processor.start }.to not_change(InboxItem.delivered, :count)
+              .and measure_yabeda_histogram(Yabeda.box_worker.item_execution_runtime).with_tags(name: "inbox_item", type: :inbox, worker_name: "processor", worker_version: 2)
+              .and increment_yabeda_counter(Yabeda.box_worker.job_items_counter).with_tags(name: "inbox_item", type: :inbox, worker_name: "processor", worker_version: 2).by(2)
+              .and not_increment_yabeda_counter(Yabeda.box_worker.job_timeout_counter)
+              .and not_increment_yabeda_counter(Yabeda.outbox.sent_counter)
+              .and not_update_yabeda_gauge(Yabeda.outbox.last_sent_event_id)
+              .and not_measure_yabeda_histogram(Yabeda.outbox.process_latency)
+              .and not_increment_yabeda_counter(Yabeda.outbox.error_counter)
+              .and not_increment_yabeda_counter(Yabeda.outbox.retry_counter)
+              .and not_increment_yabeda_counter(Yabeda.outbox.discarded_counter)
+              .and not_increment_yabeda_counter(Yabeda.outbox.fetch_error_counter)
+          end
+        end
+      end
     end
 
     context "when redis job queue is empty" do
diff --git a/spec/models/sbmt/outbox/base_item_spec.rb b/spec/models/sbmt/outbox/base_item_spec.rb
index 3537c1e..76e81cc 100644
--- a/spec/models/sbmt/outbox/base_item_spec.rb
+++ b/spec/models/sbmt/outbox/base_item_spec.rb
@@ -19,16 +19,51 @@
         expect(outbox_item).to be_max_retries_exceeded
       end
     end
+
+    context "when strict order is enabled" do
+      before do
+        allow(outbox_item.config).to receive(:strict_order).and_return(true)
+      end
+
+      it "does not consider retries when strict order is enabled" do
+        expect(outbox_item).not_to be_max_retries_exceeded
+      end
+    end
   end
 
   describe "#retry_strategies" do
     let(:outbox_item) { create(:combined_outbox_item) }
+    let(:config) { Sbmt::Outbox::OutboxItemConfig.new(box_id: Combined::OutboxItem.box_id, box_name: Combined::OutboxItem.box_name) }
+
+    before { allow(outbox_item).to receive(:config).and_return(config) }
+
+    context "when retry_strategies are not configured" do
+      it "uses default retry strategies" do
+        expect(outbox_item.config.retry_strategies).to eq([
+          Sbmt::Outbox::RetryStrategies::ExponentialBackoff,
+          Sbmt::Outbox::RetryStrategies::LatestAvailable
+        ])
+      end
+    end
 
-    it "has proper defaults" do
-      expect(outbox_item.config.retry_strategies).to eq([
-        Sbmt::Outbox::RetryStrategies::ExponentialBackoff,
-        Sbmt::Outbox::RetryStrategies::LatestAvailable
-      ])
+    context "when both retry_strategies and strict_order are present" do
+      before do
+        allow(outbox_item.config).to receive_messages(strict_order: true, options: {retry_strategies: ["exponential_backoff"]})
+      end
+
+      it "raises a ConfigError" do
+        expect { outbox_item.config.retry_strategies }.to raise_error(Sbmt::Outbox::ConfigError, "You cannot use retry_strategies and the strict_order option at the same time.")
+      end
+    end
+
+    context "when only strict_order is configured without retry_strategies" do
+      before do
+        allow(outbox_item.config).to receive_messages(strict_order: true, options: {})
+      end
+
+      it "retry strategies are not used" do
+        expect(outbox_item.config.retry_strategies).to eq([])
+      end
     end
   end
 
diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index ec7de59..049f236 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -47,6 +47,8 @@
 
 RSpec::Matchers.define_negated_matcher :not_increment_yabeda_counter, :increment_yabeda_counter
 RSpec::Matchers.define_negated_matcher :not_update_yabeda_gauge, :update_yabeda_gauge
+RSpec::Matchers.define_negated_matcher :not_measure_yabeda_histogram, :measure_yabeda_histogram
+RSpec::Matchers.define_negated_matcher :not_change, :change
 
 require "sbmt/outbox/instrumentation/open_telemetry_loader"