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Add information for Slack signing secret (#3436)

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Co-authored-by: Justin Ellingwood <justin@n8n.io>
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Jon
2025-08-06 11:22:30 +01:00
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parent 51bd634016
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3 changed files with 17 additions and 4 deletions
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docs/integrations/builtin/credentials/slack.md
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@@ -52,9 +52,10 @@ Refer to the Slack API [Quickstart](https://api.slack.com/quickstart) for more i
To use your Slack app with the [Slack Trigger](/integrations/builtin/trigger-nodes/n8n-nodes-base.slacktrigger.md) node: To use your Slack app with the [Slack Trigger](/integrations/builtin/trigger-nodes/n8n-nodes-base.slacktrigger.md) node:
1. Go to **Features** > **Event Subscriptions**. 1. Go to [Your Apps](https://api.slack.com/apps/) in Slack and select the app you want to use.
2. Turn on the **Enable Events** control. 2. Go to **Features** > **Event Subscriptions**.
3. In n8n, copy the **Webhook URL** and enter it as the **Request URL** in your Slack app. 3. Turn on the **Enable Events** control.
4. In n8n, copy the **Webhook URL** and enter it as the **Request URL** in your Slack app.
/// note | Request URL /// note | Request URL
Slack only allows one request URL per app. If you want to test your workflow, you'll need to do one of the following: Slack only allows one request URL per app. If you want to test your workflow, you'll need to do one of the following:
@@ -63,11 +64,18 @@ To use your Slack app with the [Slack Trigger](/integrations/builtin/trigger-nod
- Use the **Production URL** with execution logging. - Use the **Production URL** with execution logging.
/// ///
4. Once verified, select the bot events to subscribe to. Use the **Trigger on** field in n8n to filter these requests. 5. Once verified, select the bot events to subscribe to. Use the **Trigger on** field in n8n to filter these requests.
- To use an event not in the list, add it as a bot event and select **Any Event** in the n8n node. - To use an event not in the list, add it as a bot event and select **Any Event** in the n8n node.
Refer to [Quickstart | Configuring the app for event listening](https://api.slack.com/quickstart#listening) for more information. Refer to [Quickstart | Configuring the app for event listening](https://api.slack.com/quickstart#listening) for more information.
n8n recommends enabling request signature verification for your Slack Trigger for additional security:
1. Go to [Your Apps](https://api.slack.com/apps/) in Slack and select the app you want to use.
2. Go to **Settings** > **Basic Information**.
3. Copy the value of **Signing**.
4. In n8n, Paste this value into the **Signature Secret** field for the credential.
## Using OAuth2 ## Using OAuth2
--8<-- "_snippets/integrations/builtin/credentials/cloud-oauth-button.md" --8<-- "_snippets/integrations/builtin/credentials/cloud-oauth-button.md"

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docs/integrations/builtin/trigger-nodes/n8n-nodes-base.slacktrigger.md
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@@ -69,6 +69,10 @@ You must add the appropriate scopes to your Slack app for this trigger node to w
The node requires scopes for the [conversations.list](https://api.slack.com/methods/conversations.list) and [users.list](https://api.slack.com/methods/users.list) methods at minimum. Check out the [Scopes | Slack credentials](/integrations/builtin/credentials/slack.md#scopes) list for a more complete list of scopes. The node requires scopes for the [conversations.list](https://api.slack.com/methods/conversations.list) and [users.list](https://api.slack.com/methods/users.list) methods at minimum. Check out the [Scopes | Slack credentials](/integrations/builtin/credentials/slack.md#scopes) list for a more complete list of scopes.
## Verify the webhook
From [version `1.106.0`](/release-notes.md#n8n11060), you can set a [Slack Signing Secret](https://api.slack.com/authentication/verifying-requests-from-slack#signing_secrets_admin_page) when configuring your [Slack credentials](/integrations/builtin/credentials/slack.md#slack-trigger-configuration). When set, the Slack trigger node automatically verifies that requests are from Slack and include a trusted signature. n8n recommends setting this to ensure you only process requests sent from Slack.
## Common issues ## Common issues
Here are some common errors and issues with the Slack Trigger node and steps to resolve or troubleshoot them. Here are some common errors and issues with the Slack Trigger node and steps to resolve or troubleshoot them.