The Slack Notifications Service allows your GitLab project to send events (e.g. issue created) to your existing Slack team as notifications. This requires configurations in both Slack and GitLab.
> Note: You can also use Slack slash commands to control GitLab inside Slack. This is the separately configured [Slack slash commands](slack_slash_commands.md).
1. Sign in to your Slack team and [start a new Incoming WebHooks configuration](https://my.slack.com/services/new/incoming-webhook/).
1. Select the Slack channel where notifications will be sent to by default. Click the **Add Incoming WebHooks integration** button to add the configuration.
1. Copy the **Webhook URL**, which we'll use later in the GitLab configuration.
1. Navigate to the [Integrations page](project_services.md#accessing-the-project-services) in your project's settings, i.e. **Project > Settings > Integrations**.
1. Select the **Slack notifications** project service to configure it.
1. Check the **Active** checkbox to turn on the service.
1. Check the checkboxes corresponding to the GitLab events you want to send to Slack as a notification.
1. For each event, optionally enter the Slack channel where you want to send the event. (Do _not_ include the `#` symbol.) If left empty, the event will be sent to the default channel that you configured in the Slack Configuration step.
1. Paste the **Webhook URL** that you copied from the Slack Configuration step.
1. Optionally customize the Slack bot username that will be sending the notifications.
1. Configure the remaining options and click `Save changes`.
