---
title: "Open Channel with Users"
slug: "open-channel-with-users"
updated: 2025-07-22T19:23:17Z
published: 2025-07-22T19:23:17Z
canonical: "documentation.decisions.com/open-channel-with-users"
---

> ## 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.

# Open Channel with Users

| ## Step Details |
| --- |
| **Introduced in Version** | 4.0.0 |
| **Last Modified in Version** | 7.12.0 |
| **Location** | Integration > Slack Messenger |

The Open Channel with Users step opens a direct message channel between users.

### Prerequisites

This step requires the Slack module to be [installed](https://documentation.decisions.com/docs/installing-modules-decisions) before it will be available in the toolbox. This step requires the following scopes for the [OAuth](https://documentation.decisions.com/v8/docs/creating-oauth-tokens) token: channels:manage, groups:write, im:write, mpim:write

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## Properties

#### Inputs

| Property | Description | Data Type |
| --- | --- | --- |
| User Id List | List of User IDs which will be added to the channel | List of String |

#### Outputs

| Property | Description | Data Type |
| --- | --- | --- |
| Error |  |  |
|  | Error info | String containing the HTTPErrorCode along with an Error Message returned. | SlackErrorInfo |
| Result |  |  |
|  | RESULT | Success response which provides information on the new direct message channel, such as the users and channel ID | SlackChannel |

---

## Example Inputs and Outputs

| User Id List | Output |
| --- | --- |
| U03G2TDQB8U,U03NV7TJ1DH | Success response. new direct message channel opened within Slack |
| Null Value | Error returned: Value cannot be null |
| Empty String | Error returned: Sequence contains no elements |

#### ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/2025-06-25_15h35_39.png)

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## Common Errors

### Invalid scope

The following message will be returned if the OAuth token does not have the required permission_scope. To ensure that a channel can be created, the OAuth token must contain the following scopes: channels:manage. groups:write, im:write, mpim:write

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Related Information

Related Articles:

[Slack Module](https://documentation.decisions.com/docs/slack-module)