Elementary Slack integration includes sending Slack alerts on failures in dbt tests and models, and the option to distribute the data observability report as a message attachment.

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Token vs Webhook

There are two integration options: Token or Webhook. Both methods let you receive alerts from Elementary, but there are several features that are only supported in one of the two. Below is features support comparison table, to help you select the integration method.
If possible, Token is the preferred way. It allows more flexibility and supports more features than Webhook.
Slack integrationElementary alertsElementary reportMultiple channelsSlack workflows
Token✅✅✅❌
Webhook✅❌❌✅

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Slack integration setup

First create a Slack app:
Based on the method you selected, create a token or webhook:
Lastly, pass the token / webhook to the CLI as a param or in the config.yml file:

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Slack Workflows

If you use Slack Workflows, add the following configuration to your config.yml under the slack tag:
config.yml
slack:
  notification_webhook: <your_slack_webhook_url>
  workflows: true
This flag workflows: true changes the format in which edr sends Slack alerts to the key-value pairs format supported by Slack Workflows. The alert keys can be used to build a Slack workflow. The alert format is: 
{
  "alert_description": str,
  "table_name": str,
  "detected_at": str,
  "type": str,
  "description": str
}