---
title: "Update Exchange Calendar Item"
slug: "update-exchange-calendar-item"
updated: 2025-09-02T19:28:57Z
published: 2025-09-02T19:28:57Z
canonical: "documentation.decisions.com/update-exchange-calendar-item"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.decisions.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Update Exchange Calendar Item

| Step Details |
| --- |
| **Introduced in Version** | 4.0.0 |
| **Last Modified in Version** | 7.12.0 |
| **Location** | Integration > Exchange Web Services |

The **Update Exchange Calendar Item** step allows users to update a calendar event item. The Id property in the Calendar Item parameter must be a valid Calendar ItemId for the user in Exchange. This value is set in the results from the Search Exchange Calendar and Create Exchange Calendar Item steps.

### Prerequisites

- This step requires the [Exchange Web Services module](https://documentation.decisions.com/docs/microsoft365-exchange) to be [installed](https://documentation.decisions.com/docs/installing-modules-decisions) before it will be available in the toolbox.
- A [dependency](https://documentation.decisions.com/docs/project-dependencies) must be created after installing the module in order for the Step to be properly used.

---

## Properties

#### Inputs

| Property | Description | Data Type |
| --- | --- | --- |
| Calendar Item | The Exchange Calendar Item object to update. | ExchangeCalendarItem |
| Exchange Server | Server and authentication to use. | ExchangeServerDefinition |

![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1752005758279.png)

---

## Common Errors

### The Remote Server Returned an Error

If the remote server is improperly entered, the step will cause an error.

To correct this, input a URL that is properly spelled to effectively connect to the designated server.

#### Error Message:

```csharp
DecisionsFramework.Design.Flow.ErrorRunningFlowStep: Error running step Search Emails 1[SearchEmails] in flow [Step Library Flow]: Exception invoking method SearchEmails on class ExchangeEmailSteps
 ---> DecisionsFramework.LoggedException: Exception invoking method SearchEmails on class ExchangeEmailSteps
 ---> System.Exception: Search Exchange Email error. Search String: test.
 ---> System.AggregateException: One or more errors occurred. (The parameter queryString is only valid for Exchange Server version Exchange2010 or a later version.)
 ---> Microsoft.Exchange.WebServices.Data.ServiceVersionException: The parameter queryString is only valid for Exchange Server version Exchange2010 or a later version. at Microsoft.Exchange.WebServices.Data.FindRequest`1.Validate()
 at Microsoft.Exchange.WebServices.Data.ServiceRequestBase.ValidateAndEmitRequest()
 at Microsoft.Exchange.WebServices.Data.SimpleServiceRequestBase.InternalExecuteAsync()
 at Microsoft.Exchange.WebServices.Data.MultiResponseServiceRequest`1.ExecuteAsync()
 at Microsoft.Exchange.WebServices.Data.ExchangeService.FindItems(FolderId parentFolderId, String queryString, ViewBase view)
   --- End of inner exception stack trace --- at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
 at System.Threading.Tasks.Task`1.get_Result()
 at Decisions.Exchange.ExchangeEmailSteps.SearchEmails(ExchangeServerDefinition ExchangeServer, String SearchString, Int32 PageSize, Int32 Offset)
   --- End of inner exception stack trace --- at Decisions.Exchange.ExchangeEmailSteps.SearchEmails(ExchangeServerDefinition ExchangeServer, String SearchString, Int32 PageSize, Int32 Offset)
 at InvokeStub_ExchangeEmailSteps.SearchEmails(Object, Span`1)
 at System.Reflection.MethodBaseInvoker.InvokeWithFewArgs(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
   --- End of inner exception stack trace --- at DecisionsFramework.Design.Flow.StepImplementations.InvokeMethodStep.Run(StepStartData data)
 at DecisionsFramework.Design.Flow.FlowStep.RunStepInternal(String flowTrackingID, String stepTrackingID, KeyValuePairDataStructure[] stepRunDataValues, AbstractFlowTrackingData trackingData)
 at DecisionsFramework.Design.Flow.FlowStep.Start(String flowTrackingID, String stepTrackingID, FlowStateData data, AbstractFlowTrackingData trackingData, RunningStepData currentStepData)
   --- End of inner exception stack trace ---
```

---

Related InformationRelated Articles:  
  
[Exchange Web Services Module](https://documentation.decisions.com/docs/microsoft365-exchange)