diff --git a/Conductor/Api/WorkflowResourceApi.cs b/Conductor/Api/WorkflowResourceApi.cs
index f0969e27..409632af 100644
--- a/Conductor/Api/WorkflowResourceApi.cs
+++ b/Conductor/Api/WorkflowResourceApi.cs
@@ -72,6 +72,12 @@ public interface IWorkflowResourceApi : IApiAccessor
         /// <returns>WorkflowRun</returns>
         WorkflowRun ExecuteWorkflow(StartWorkflowRequest body, string requestId, string name, int? version, string waitUntilTaskRef = null);
 
+        /// <summary>
+        /// Update the value of the workflow variables for the given workflow id 
+        /// </summary>
+        /// <param name="workflow"></param>
+        /// <returns>ApiResponse of Object(void)</returns>
+        Object UpdateWorkflowVariables(Workflow workflow);
         /// <summary>
         /// Execute a workflow synchronously
         /// </summary>
@@ -1029,6 +1035,73 @@ public ApiResponse<WorkflowRun> ExecuteWorkflowWithHttpInfo(StartWorkflowRequest
                 (WorkflowRun)this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(WorkflowRun)));
         }
 
+        public Object UpdateWorkflowVariables(Workflow workflow)
+        {
+            ApiResponse<Object> localVarResponse = UpdateWorkflowVariablesWithHttpInfo(workflow);
+            return localVarResponse.Data;
+        }
+
+        public ApiResponse<Object> UpdateWorkflowVariablesWithHttpInfo(Workflow workflow)
+        {
+            // verify the required parameter 'body' is set
+            if (workflow == null)
+                throw new ApiException(400, "Missing required parameter 'body' when calling WorkflowResourceApi->Update");
+
+            if (string.IsNullOrEmpty(workflow.WorkflowId))
+                throw new ApiException(400, "Missing required parameter 'WorkflowId' when calling WorkflowResourceApi->Update");
+
+            if (workflow.Variables == null)
+                throw new ApiException(400, "Missing required parameter 'Variables' when calling WorkflowResourceApi->Update");
+
+            var localVarPath = $"/workflow/{workflow.WorkflowId}/variables";
+            var localVarPathParams = new Dictionary<String, String>();
+            var localVarQueryParams = new List<KeyValuePair<String, String>>();
+            var localVarHeaderParams = new Dictionary<String, String>(this.Configuration.DefaultHeader);
+            var localVarFormParams = new Dictionary<String, String>();
+            var localVarFileParams = new Dictionary<String, FileParameter>();
+            Object localVarPostBody = null;
+
+            // to determine the Content-Type header
+            String[] localVarHttpContentTypes = new String[] {
+                "application/json"
+            };
+            String localVarHttpContentType = this.Configuration.ApiClient.SelectHeaderContentType(localVarHttpContentTypes);
+
+            // to determine the Accept header
+            String[] localVarHttpHeaderAccepts = new String[] {
+                "*/*"
+            };
+            String localVarHttpHeaderAccept = this.Configuration.ApiClient.SelectHeaderAccept(localVarHttpHeaderAccepts);
+            if (localVarHttpHeaderAccept != null)
+                localVarHeaderParams.Add("Accept", localVarHttpHeaderAccept);
+
+            if (workflow != null && workflow.GetType() != typeof(byte[]))
+            {
+                localVarPostBody = this.Configuration.ApiClient.Serialize(workflow.Variables);
+            }
+
+            // authentication (api_key) required
+            if (!String.IsNullOrEmpty(this.Configuration.AccessToken))
+            {
+                localVarHeaderParams["X-Authorization"] = this.Configuration.AccessToken;
+            }
+
+            IRestResponse localVarResponse = (IRestResponse)this.Configuration.ApiClient.CallApi(localVarPath,
+                Method.POST, localVarQueryParams, localVarPostBody, localVarHeaderParams, localVarFormParams, localVarFileParams,
+                localVarPathParams, localVarHttpContentType);
+            int localVarStatusCode = (int)localVarResponse.StatusCode;
+
+            if (ExceptionFactory != null)
+            {
+                Exception exception = ExceptionFactory("Update", localVarResponse);
+                if (exception != null) throw exception;
+            }
+
+            return new ApiResponse<Object>(localVarStatusCode,
+                localVarResponse.Headers.ToDictionary(x => x.Name, x => string.Join(",", x.Value)),
+                (Object)this.Configuration.ApiClient.Deserialize(localVarResponse, typeof(Object)));
+        }
+
         /// <summary>
         /// Gets the workflow by workflow id 
         /// </summary>
diff --git a/Conductor/Client/Extensions/ConductorTaskExtensions.cs b/Conductor/Client/Extensions/ConductorTaskExtensions.cs
index b56968e9..b7303ec6 100644
--- a/Conductor/Client/Extensions/ConductorTaskExtensions.cs
+++ b/Conductor/Client/Extensions/ConductorTaskExtensions.cs
@@ -18,7 +18,7 @@ public static TaskResult InProgress(this Task task, string log = null, long? cal
                 {
                     new TaskExecLog { TaskId = task.TaskId, Log = log, CreatedTime = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds() }
                 },
-                callbackAfterSeconds: callbackAfterSeconds.Value
+                callbackAfterSeconds: callbackAfterSeconds
             );
         }
 
diff --git a/Conductor/Definition/ConductorWorkflow.cs b/Conductor/Definition/ConductorWorkflow.cs
index f7d44657..e22a01a9 100644
--- a/Conductor/Definition/ConductorWorkflow.cs
+++ b/Conductor/Definition/ConductorWorkflow.cs
@@ -62,6 +62,13 @@ public ConductorWorkflow WithOutputParameter(string key, object value)
             return this;
         }
 
+        public ConductorWorkflow WithVariable(string key, object value)
+        {
+            if (Variables == null) // if workflow does not have any variables, initialize with empty collection
+                Variables = new Dictionary<string, object>();
+            Variables.Add(key, value);
+            return this;
+        }
         public ConductorWorkflow WithOwner(string ownerEmail)
         {
             OwnerEmail = ownerEmail;
diff --git a/Tests/Api/WorkflowResourceApiTest.cs b/Tests/Api/WorkflowResourceApiTest.cs
new file mode 100644
index 00000000..343c3bc7
--- /dev/null
+++ b/Tests/Api/WorkflowResourceApiTest.cs
@@ -0,0 +1,97 @@
+using conductor.csharp.Client.Extensions;
+using Conductor.Api;
+using Conductor.Client.Extensions;
+using Conductor.Client.Models;
+using Conductor.Definition;
+using Conductor.Definition.TaskType;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using Tests.Worker;
+using Xunit;
+
+namespace conductor_csharp.test.Api
+{
+    public class WorkflowResourceApiTest
+    {
+        private const string WORKFLOW_NAME = "TestToCreateVariables";
+        private const string TASK_NAME = "TestToCreateVariables_Task";
+        private const string WORKFLOW_VARIABLE_1 = "TestVariable1";
+        private const string WORKFLOW_VARIABLE_2 = "TestVariable2";
+        private const string WORKFLOW_DESC = "Test Workflow With Variables";
+        private const int WORKFLOW_VERSION = 1;
+
+        private readonly WorkflowResourceApi _workflowClient;
+        private readonly ILogger _logger;
+
+        public WorkflowResourceApiTest()
+        {
+            _workflowClient = ApiExtensions.GetClient<WorkflowResourceApi>();
+            _logger = ApplicationLogging.CreateLogger<WorkerTests>();
+        }
+
+        [Fact]
+        public async void UpdateWorkflowVariables()
+        {
+            // Prepare workflow
+            var _workflow = GetConductorWorkflow();
+            ApiExtensions.GetWorkflowExecutor().RegisterWorkflow(_workflow, true);
+            var workflowId = ApiExtensions.GetWorkflowExecutor().StartWorkflow(_workflow);
+            await ExecuteWorkflowTasks(workflowCompletionTimeout: TimeSpan.FromSeconds(20));
+            await ValidateWorkflowCompletion(workflowId);
+
+            // Create variables collection with values to be updated
+            var updateDict = new Dictionary<string, object> {
+                {WORKFLOW_VARIABLE_1,"Value1" },
+                {WORKFLOW_VARIABLE_2,"Value2" },
+            };
+            var updateVariableData = new Workflow() { WorkflowId = workflowId, Variables = updateDict };
+            // Update the work flow variables 
+            _workflowClient.UpdateWorkflowVariables(updateVariableData);
+            // Fetch latest workflow data to validate the change in variables
+            var _updatedWorkFlow = _workflowClient.GetWorkflowStatusSummary(workflowId, includeVariables: true);
+            // Verify workflow variables data is equal with input passed 
+            Assert.Equal(_updatedWorkFlow.Variables, updateDict);
+        }
+
+        private async System.Threading.Tasks.Task ExecuteWorkflowTasks(TimeSpan workflowCompletionTimeout)
+        {
+            var host = WorkflowTaskHost.CreateWorkerHost(LogLevel.Information, new ClassWorker());
+            await host.StartAsync();
+            Thread.Sleep(workflowCompletionTimeout);
+            await host.StopAsync();
+        }
+
+        private ConductorWorkflow GetConductorWorkflow()
+        {
+            return new ConductorWorkflow()
+                .WithName(WORKFLOW_NAME)
+                .WithVersion(WORKFLOW_VERSION)
+                .WithDescription(WORKFLOW_DESC)
+                .WithTask(new SimpleTask(TASK_NAME, TASK_NAME))
+                .WithVariable(WORKFLOW_VARIABLE_1, $"{WORKFLOW_VARIABLE_1}_Value")
+                .WithVariable(WORKFLOW_VARIABLE_2, $"{WORKFLOW_VARIABLE_2}_Value");
+        }
+
+        private async System.Threading.Tasks.Task ValidateWorkflowCompletion(params string[] workflowIdList)
+        {
+            var workflowStatusList = await WorkflowExtensions.GetWorkflowStatusList(
+                _workflowClient,
+                maxAllowedInParallel: 10,
+                workflowIdList
+            );
+            var incompleteWorkflowCounter = 0;
+            workflowStatusList.ToList().ForEach(wf =>
+            {
+                if (wf.Status.Value != WorkflowStatus.StatusEnum.COMPLETED)
+                {
+                    incompleteWorkflowCounter += 1;
+                    _logger.LogInformation($"Workflow not completed, workflowId: {wf.WorkflowId}");
+                }
+            });
+            Assert.Equal(0, incompleteWorkflowCounter);
+        }
+    }
+}
diff --git a/csharp-examples/Runner.cs b/csharp-examples/Runner.cs
index 02134d01..24123c5c 100644
--- a/csharp-examples/Runner.cs
+++ b/csharp-examples/Runner.cs
@@ -50,8 +50,8 @@ public async void StartTasks()
                 }
             }
 
-            while (true) 
-              Thread.Sleep(TimeSpan.FromDays(1)); // after 1 year will stop the service    
+            while (true)
+                Thread.Sleep(TimeSpan.FromDays(1));// after 1 year will stop the service
 
         }
         catch (Exception e)
diff --git a/csharp-examples/WorkFlowExamples.cs b/csharp-examples/WorkFlowExamples.cs
new file mode 100644
index 00000000..5922836e
--- /dev/null
+++ b/csharp-examples/WorkFlowExamples.cs
@@ -0,0 +1,77 @@
+using Conductor.Client;
+using Conductor.Definition.TaskType;
+using Conductor.Definition;
+using Conductor.Executor;
+using Conductor.Api;
+using Conductor.Client.Authentication;
+
+namespace csharp_examples
+{
+    public class WorkFlowExamples
+    {
+
+        private const string KEY_ID = "<REPLACE_WITH_KEY_ID>";
+        private const string KEY_SECRET = "<REPLACE_WITH_KEY_SECRET>";
+        private const string OWNER_EMAIL = "<REPLACE_WITH_OWNER_EMAIL>";
+
+        private const string WORKFLOW_ID = "<REPLACE_WITH_WORKFLOW_ID>";
+        private const string WORKFLOW_NAME = "<REPLACE_WITH_WORKFLOW_NAME>";
+        private const string WORKFLOW_DESCRIPTION = "<REPLACE_WITH_WORKFLOW_DESCRIPTION>";
+        private const string TASK_NAME = "<REPLACE_WITH_TASK_NAME >";
+        private const string TASK_REFERENCE = "<REPLACE_WITH_TASK_REFERENCE_NAME>";
+
+        private const string VARIABLE_OLD_VALUE = "SOME_OLD_VALUE";
+        private const string VARIABLE_NAME_1 = "<REPLACE_WITH_VARIABLE_NAME_1>";
+        private const string VARIABLE_NEW_VALUE_1 = "<REPLACE_WITH_OWNER_VALUE_1>";
+        private const string VARIABLE_NAME_2 = "<REPLACE_WITH_VARIABLE_NAME_2>";
+        private const string VARIABLE_NEW_VALUE_2 = "<REPLACE_WITH_OWNER_VALUE_2>";
+
+
+        public void RegisterWorkFlow()
+        {
+            Configuration configuration = new Configuration()
+            {
+                AuthenticationSettings = new OrkesAuthenticationSettings(KEY_ID, KEY_SECRET)
+            };
+
+            WorkflowExecutor executor = new WorkflowExecutor(configuration);
+            executor.RegisterWorkflow(GetConductorWorkflow(), true);
+        }
+
+        private ConductorWorkflow GetConductorWorkflow()
+        {
+            var conductorWorkFlow = new ConductorWorkflow()
+                .WithName(WORKFLOW_NAME).WithDescription(WORKFLOW_DESCRIPTION)
+                .WithTask(new SimpleTask(TASK_NAME, TASK_REFERENCE))
+            .WithOwner(OWNER_EMAIL);
+
+            var workflowVariableTobeAdded = new Dictionary<string, object>
+            {
+                { VARIABLE_NAME_1, VARIABLE_OLD_VALUE},
+                { VARIABLE_NAME_2, VARIABLE_OLD_VALUE }
+            };
+
+            conductorWorkFlow.Variables = workflowVariableTobeAdded;
+            return conductorWorkFlow;
+        }
+
+        public void UpdateWorkflowVariablesWithWorkFlowId()
+        {
+            var orkesApiClient = new OrkesApiClient(new Configuration(),
+                new OrkesAuthenticationSettings(KEY_ID, KEY_SECRET));
+            var workflowClient = orkesApiClient.GetClient<WorkflowResourceApi>();
+            var workFlowVariables = new Dictionary<string, object>
+            {
+                { VARIABLE_NAME_1, VARIABLE_NEW_VALUE_1 },
+                { VARIABLE_NAME_2, VARIABLE_NEW_VALUE_2 }
+            };
+
+            workflowClient.UpdateWorkflowVariables(new Conductor.Client.Models.Workflow()
+            {
+                WorkflowId = WORKFLOW_ID,
+                Variables = workFlowVariables
+            });
+        }
+
+    }
+}