# Technical references

> This guide explains how to retrieve the channel ID for a specific channel in Microsoft Teams and how to use it in other Microsoft Teams activities.

## How to Retrieve a Channel's ID and Use It in Microsoft Teams Activities

### About

This guide explains how to retrieve the channel ID for a specific channel in Microsoft Teams and how to use it in other Microsoft Teams activities.

These workflows are built in Studio Web, but you can follow the same steps in Studio Desktop.

### How to retrieve the channel ID for a specific channel in Microsoft Teams

1. Open your Microsoft Teams app. Select **Teams** from the left-side menu and copy the channel name.

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-180016-05531343-3089d044.webp)
2. Create a new project in Studio Web and add a **List channels** activity.
3. Choose the **Team Id** from the drop-down menu. A channel is bound to a team; in this example, the **Upcoming Webinar Registrants Tracking** channel belongs to the **Private** team.

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-178440-647f8a7b-ca6fe27d.webp)
4. For the **Where** field, use the **Filter builder** to set the following condition: Display name = [your channel's name].

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-178392-ecf3df1b-0c5d25f5.webp)
5. For the Output **List** field, create a `GetChannelID` variable to store the activity's response. Click the **Plus** ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-studioweb_plus-d6da8139-7dac7681.png) button and select **Save as variable**, then create a `GetChannelID` variable.
6. Next, add a **Write Line** activity and use the **Expression editor** to set the **Text** field to:

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-187034-003ccf8d-e842688d.webp)

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-180100-f4158914-7e83dd3b.webp)
7. Run the workflow to retrieve the output Channel ID:

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-178484-ade147dd-5d016c40.webp)
8. Now you can use the Channel ID in other Microsoft Teams activities, such as **Send channel message**.

### How to share a file attachment with a message in Microsoft Teams

:::note
The file to be sent must come from a cloud storage service. In this example we are using a Google Drive item, but you can use other storage systems, such as Dropbox, Citrix ShareFile, OneDrive, etc.
:::

1. Add a Google Drive **Get File/Folder** activity to your project and select the file you wish to share later on in Microsoft Teams. In this example, a `.PNG` file.
2. **Retrieved file or folder** represents the output of this activity. Click the **Plus** ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-studioweb_plus-d6da8139-7dac7681.png) button and select **Save as variable**, then create a `File` variable.

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-178544-26b494d6-d9b5be63.webp)
3. Add a **Send channel message**. In the **File Resource** field, add the `File` variable created before.
4. For **Channel ID**, use the **Expression editor** to set it to `GetChannelID(0).Id`. This represents the `GetChannelID` variable used to store the output of the **List channels** activity.
5. Select the **Team ID** from the drop-down menu.
6. In **Content** add the message you wish to share.

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-178856-6966f79d-2a8d1168.webp)
7. Run your process.
8. Go to your channel and check if your message was posted, along with the attachment:

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-183933-d9567d4e-d8396e18.webp)

### How to create a one on one chat in Microsoft Teams and send a message

1. Add a **Create one on one chat** activity to your project.
2. In **User email**, add the email address of the recipient user. Users must belong to your organization.
3. Set up **Roles**, such as `guest` or `owner`.
4. In the Output **ChatID** field, create a `ChatID` variable.

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-179184-e0a28e16-d06e3d8b.webp)
5. Next, add a **Send chat message** activity.
6. In the **Chat ID** field, enter the `ChatID` variable created earlier.
7. In **Content**, enter the content of the message you wish to send.
8. Optionally, you can also add an attachment to your message by using the **File Resource** property, as shown in the previous example.
9. Run the process.

   ![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/latest-docs-image-180936-a36c2b64-90194728.webp)