diff --git a/lib/datadog/ci/configuration/components.rb b/lib/datadog/ci/configuration/components.rb
index 329f9546..4ae191fc 100644
--- a/lib/datadog/ci/configuration/components.rb
+++ b/lib/datadog/ci/configuration/components.rb
@@ -13,6 +13,7 @@
 require_relative "../test_visibility/transport"
 require_relative "../transport/api/builder"
 require_relative "../transport/remote_settings_api"
+require_relative "../utils/test_run"
 require_relative "../worker"
 
 module Datadog
@@ -90,14 +91,18 @@ def activate_ci!(settings)
 
           settings.tracing.test_mode.writer_options = writer_options
 
+          custom_configuration_tags = Utils::TestRun.custom_configuration(settings.tags)
+
           remote_settings_api = Transport::RemoteSettingsApi.new(
             api: test_visibility_api,
-            dd_env: settings.env
+            dd_env: settings.env,
+            config_tags: custom_configuration_tags
           )
 
           itr = ITR::Runner.new(
             api: test_visibility_api,
             dd_env: settings.env,
+            config_tags: custom_configuration_tags,
             coverage_writer: coverage_writer,
             enabled: settings.ci.enabled && settings.ci.itr_enabled
           )
diff --git a/lib/datadog/ci/itr/runner.rb b/lib/datadog/ci/itr/runner.rb
index abd1f68f..e7d3b01b 100644
--- a/lib/datadog/ci/itr/runner.rb
+++ b/lib/datadog/ci/itr/runner.rb
@@ -27,6 +27,7 @@ class Runner
 
         def initialize(
           dd_env:,
+          config_tags: {},
           api: nil,
           coverage_writer: nil,
           enabled: false
@@ -34,6 +35,7 @@ def initialize(
           @enabled = enabled
           @api = api
           @dd_env = dd_env
+          @config_tags = config_tags || {}
 
           @test_skipping_enabled = false
           @code_coverage_enabled = false
@@ -191,7 +193,10 @@ def fetch_skippable_tests(test_session:, git_tree_upload_worker:)
           # we can only request skippable tests if git metadata is already uploaded
           git_tree_upload_worker.wait_until_done
 
-          skippable_response = Skippable.new(api: @api, dd_env: @dd_env).fetch_skippable_tests(test_session)
+          skippable_response =
+            Skippable.new(api: @api, dd_env: @dd_env, config_tags: @config_tags)
+              .fetch_skippable_tests(test_session)
+
           @correlation_id = skippable_response.correlation_id
           @skippable_tests = skippable_response.tests
 
diff --git a/lib/datadog/ci/itr/skippable.rb b/lib/datadog/ci/itr/skippable.rb
index a1382ad0..c0bcbb27 100644
--- a/lib/datadog/ci/itr/skippable.rb
+++ b/lib/datadog/ci/itr/skippable.rb
@@ -57,9 +57,10 @@ def payload
           end
         end
 
-        def initialize(dd_env:, api: nil)
+        def initialize(dd_env:, api: nil, config_tags: {})
           @api = api
           @dd_env = dd_env
+          @config_tags = config_tags
         end
 
         def fetch_skippable_tests(test_session)
@@ -94,7 +95,8 @@ def payload(test_session)
                   Ext::Test::TAG_OS_ARCHITECTURE => test_session.os_architecture,
                   Ext::Test::TAG_OS_VERSION => test_session.os_version,
                   Ext::Test::TAG_RUNTIME_NAME => test_session.runtime_name,
-                  Ext::Test::TAG_RUNTIME_VERSION => test_session.runtime_version
+                  Ext::Test::TAG_RUNTIME_VERSION => test_session.runtime_version,
+                  "custom" => @config_tags
                 }
               }
             }
diff --git a/lib/datadog/ci/transport/remote_settings_api.rb b/lib/datadog/ci/transport/remote_settings_api.rb
index 03ac76a1..e07e999f 100644
--- a/lib/datadog/ci/transport/remote_settings_api.rb
+++ b/lib/datadog/ci/transport/remote_settings_api.rb
@@ -51,9 +51,10 @@ def default_payload
           end
         end
 
-        def initialize(dd_env:, api: nil)
+        def initialize(dd_env:, api: nil, config_tags: {})
           @api = api
           @dd_env = dd_env
+          @config_tags = config_tags || {}
         end
 
         def fetch_library_settings(test_session)
@@ -90,7 +91,8 @@ def payload(test_session)
                   Ext::Test::TAG_OS_ARCHITECTURE => test_session.os_architecture,
                   Ext::Test::TAG_OS_VERSION => test_session.os_version,
                   Ext::Test::TAG_RUNTIME_NAME => test_session.runtime_name,
-                  Ext::Test::TAG_RUNTIME_VERSION => test_session.runtime_version
+                  Ext::Test::TAG_RUNTIME_VERSION => test_session.runtime_version,
+                  "custom" => @config_tags
                 }
               }
             }
diff --git a/lib/datadog/ci/utils/test_run.rb b/lib/datadog/ci/utils/test_run.rb
index eb494182..53da3ab9 100644
--- a/lib/datadog/ci/utils/test_run.rb
+++ b/lib/datadog/ci/utils/test_run.rb
@@ -22,6 +22,18 @@ def self.test_parameters(arguments: {}, metadata: {})
             }
           )
         end
+
+        def self.custom_configuration(env_tags)
+          return {} if env_tags.nil?
+
+          res = {}
+          env_tags.each do |tag, value|
+            next unless tag.start_with?("test.configuration.")
+
+            res[tag.sub("test.configuration.", "")] = value
+          end
+          res
+        end
       end
     end
   end
diff --git a/sig/datadog/ci/itr/runner.rbs b/sig/datadog/ci/itr/runner.rbs
index eaecd27b..f76a308d 100644
--- a/sig/datadog/ci/itr/runner.rbs
+++ b/sig/datadog/ci/itr/runner.rbs
@@ -13,6 +13,7 @@ module Datadog
 
         @api: Datadog::CI::Transport::Api::Base?
         @dd_env: String?
+        @config_tags: Hash[String, String]
 
         @skipped_tests_count: Integer
         @mutex: Thread::Mutex
@@ -21,7 +22,7 @@ module Datadog
         attr_reader skipped_tests_count: Integer
         attr_reader correlation_id: String?
 
-        def initialize: (dd_env: String?, ?enabled: bool, coverage_writer: Datadog::CI::ITR::Coverage::Writer?, api: Datadog::CI::Transport::Api::Base?) -> void
+        def initialize: (dd_env: String?, ?enabled: bool, coverage_writer: Datadog::CI::ITR::Coverage::Writer?, api: Datadog::CI::Transport::Api::Base?, ?config_tags: Hash[String, String]?) -> void
 
         def configure: (Hash[String, untyped] remote_configuration, test_session: Datadog::CI::TestSession, git_tree_upload_worker: Datadog::CI::Worker) -> void
 
diff --git a/sig/datadog/ci/itr/skippable.rbs b/sig/datadog/ci/itr/skippable.rbs
index 15c81922..f29e893c 100644
--- a/sig/datadog/ci/itr/skippable.rbs
+++ b/sig/datadog/ci/itr/skippable.rbs
@@ -4,6 +4,7 @@ module Datadog
       class Skippable
         @api: Datadog::CI::Transport::Api::Base?
         @dd_env: String?
+        @config_tags: Hash[String, String]
 
         class Response
           @http_response: Datadog::Core::Transport::HTTP::Adapters::Net::Response?
@@ -22,7 +23,7 @@ module Datadog
           def payload: () -> Hash[String, untyped]
         end
 
-        def initialize: (?api: Datadog::CI::Transport::Api::Base?, dd_env: String?) -> void
+        def initialize: (?api: Datadog::CI::Transport::Api::Base?, dd_env: String?, ?config_tags: Hash[String, String]) -> void
 
         def fetch_skippable_tests: (Datadog::CI::TestSession test_session) -> Response
 
diff --git a/sig/datadog/ci/transport/remote_settings_api.rbs b/sig/datadog/ci/transport/remote_settings_api.rbs
index 1c655f0e..925066bf 100644
--- a/sig/datadog/ci/transport/remote_settings_api.rbs
+++ b/sig/datadog/ci/transport/remote_settings_api.rbs
@@ -21,8 +21,9 @@ module Datadog
 
         @api: Datadog::CI::Transport::Api::Base?
         @dd_env: String?
+        @config_tags: Hash[String, String]
 
-        def initialize: (?api: Datadog::CI::Transport::Api::Base?, dd_env: String?) -> void
+        def initialize: (?api: Datadog::CI::Transport::Api::Base?, dd_env: String?, ?config_tags: Hash[String, String]?) -> void
 
         def fetch_library_settings: (Datadog::CI::TestSession test_session) -> Response
 
diff --git a/sig/datadog/ci/utils/test_run.rbs b/sig/datadog/ci/utils/test_run.rbs
index 71287469..9b78c27b 100644
--- a/sig/datadog/ci/utils/test_run.rbs
+++ b/sig/datadog/ci/utils/test_run.rbs
@@ -9,6 +9,8 @@ module Datadog
         def self.skippable_test_id: (String test_name, String? test_suite, ?String? parameters) -> String
 
         def self.test_parameters: (?arguments: Hash[untyped, untyped], ?metadata: Hash[untyped, untyped]) -> String
+
+        def self.custom_configuration: (Hash[String, String]? env_tags) -> Hash[String, String]
       end
     end
   end
diff --git a/spec/datadog/ci/itr/skippable_spec.rb b/spec/datadog/ci/itr/skippable_spec.rb
index e778cb86..4cdf7982 100644
--- a/spec/datadog/ci/itr/skippable_spec.rb
+++ b/spec/datadog/ci/itr/skippable_spec.rb
@@ -5,8 +5,9 @@
 RSpec.describe Datadog::CI::ITR::Skippable do
   let(:api) { spy("api") }
   let(:dd_env) { "ci" }
+  let(:config_tags) { {} }
 
-  subject(:client) { described_class.new(api: api, dd_env: dd_env) }
+  subject(:client) { described_class.new(api: api, dd_env: dd_env, config_tags: config_tags) }
 
   describe "#fetch_skippable_tests" do
     let(:service) { "service" }
@@ -176,5 +177,24 @@
         end
       end
     end
+
+    context "when there are custom configurations" do
+      let(:config_tags) do
+        {
+          "tag1" => "value1"
+        }
+      end
+
+      it "requests the skippable tests with custom configurations" do
+        client.fetch_skippable_tests(test_session)
+
+        expect(api).to have_received(:api_request) do |args|
+          data = JSON.parse(args[:payload])["data"]
+          configurations = data["attributes"]["configurations"]
+
+          expect(configurations["custom"]).to eq("tag1" => "value1")
+        end
+      end
+    end
   end
 end
diff --git a/spec/datadog/ci/transport/remote_settings_api_spec.rb b/spec/datadog/ci/transport/remote_settings_api_spec.rb
index f9c52091..b89e3ff6 100644
--- a/spec/datadog/ci/transport/remote_settings_api_spec.rb
+++ b/spec/datadog/ci/transport/remote_settings_api_spec.rb
@@ -5,8 +5,9 @@
 RSpec.describe Datadog::CI::Transport::RemoteSettingsApi do
   let(:api) { spy("api") }
   let(:dd_env) { "ci" }
+  let(:config_tags) { {} }
 
-  subject(:client) { described_class.new(api: api, dd_env: dd_env) }
+  subject(:client) { described_class.new(api: api, dd_env: dd_env, config_tags: config_tags) }
 
   describe "#fetch_library_settings" do
     let(:service) { "service" }
@@ -175,5 +176,21 @@
         end
       end
     end
+
+    context "with custom configuration" do
+      let(:config_tags) { {"key" => "value"} }
+
+      it "requests the settings" do
+        client.fetch_library_settings(test_session)
+
+        expect(api).to have_received(:api_request) do |args|
+          data = JSON.parse(args[:payload])["data"]
+
+          attributes = data["attributes"]
+          configurations = attributes["configurations"]
+          expect(configurations["custom"]).to eq("key" => "value")
+        end
+      end
+    end
   end
 end
diff --git a/spec/datadog/ci/utils/test_run_spec.rb b/spec/datadog/ci/utils/test_run_spec.rb
index b2e7b93d..a6ead39e 100644
--- a/spec/datadog/ci/utils/test_run_spec.rb
+++ b/spec/datadog/ci/utils/test_run_spec.rb
@@ -34,4 +34,28 @@
       )
     end
   end
+
+  describe ".custom_configuration" do
+    subject { described_class.custom_configuration(env_tags) }
+
+    context "when env_tags is nil" do
+      let(:env_tags) { nil }
+
+      it { is_expected.to eq({}) }
+    end
+
+    context "when env_tags is not nil" do
+      let(:env_tags) do
+        {
+          "test.configuration.tag1" => "value1",
+          "test.configuration.tag2" => "value2",
+          "tag3" => "value3",
+          "test.configurations.tag4" => "value4",
+          "test.configuration" => "value5"
+        }
+      end
+
+      it { is_expected.to eq({"tag1" => "value1", "tag2" => "value2"}) }
+    end
+  end
 end