GitLab Notifications allow you to stay informed about what's happening in GitLab. With notifications enabled, you can receive updates about activity in issues, merge requests, and epics. Notifications are sent via email.
## Receiving notifications
You will receive notifications for one of the following reasons:
- You participate in an issue, merge request, or epic. In this context, _participate_ means comment, or edit.
- You enable notifications in an issue, merge request, or epic. To enable notifications, click the **Notifications** toggle in the sidebar to _on_.
While notifications are enabled, you will receive notification of actions occurring in that issue, merge request, or epic.
NOTE: **Note:**
Notifications can be blocked by an admin, preventing them from being sent.
## Tuning your notifications
The quantity of notifications can be overwhelming. GitLab allows you to tune the notifications you receive. For example, you may want to be notified about all activity in a specific project, but for others, only be notified when you are mentioned by name.
You can tune the notifications you receive by combining your notification settings:
Your **Global notification settings** are the default settings unless you select different values for a project or a group.
- Notification email
- This is the email address your notifications will be sent to.
- Global notification level
- This is the default [notification level](#notification-levels) which applies to all your notifications.
- Receive notifications about your own activity.
- Check this checkbox if you want to receive notification about your own activity. Default: Not checked.
### Notification scope
You can tune the scope of your notifications by selecting different notification levels for each project and group.
Notification scope is applied in order of precedence (highest to lowest):
- Project
- For each project, you can select a notification level. Your project setting overrides the group setting.
- Group
- For each group, you can select a notification level. Your group setting overrides your default setting.
- Global (default)
- Your global, or _default_, notification level applies if you have not selected a notification level for the project or group in which the activity occurred.
#### Project notifications
You can select a notification level for each project. This can be useful if you need to closely monitor activity in select projects.
To select a notification level for a group, use either of these methods:
1. Click on your profile picture and select **Settings**.
1. Click **Notifications** in the left sidebar.
1. Locate the project in the **Groups** section.
1. Select the desired [notification level](#notification-levels).
---
1. Navigate to the group's page.
1. Click the notification dropdown, marked with a bell icon.
1. Select the desired [notification level](#notification-levels).
##### Group notification email address
> Introduced in GitLab 12.0
You can select an email address to receive notifications for each group you belong to. This could be useful, for example, if you work freelance, and want to keep email about clients' projects separate.
1. Click on your profile picture and select **Settings**.
1. Click **Notifications** in the left sidebar.
1. Locate the project in the **Groups** section.
1. Select the desired email address.
### Notification levels
For each project and group you can select one of the following levels:
| Level | Description |
|:------------|:------------|
| Global | Your global settings apply. |
| Watch | Receive notifications for any activity. |
| On mention | Receive notifications when `@mentioned` in comments. |
| Participate | Receive notifications for threads you have participated in. |
| Disabled | Turns off notifications. |
| Custom | Receive notifications for custom selected events. |
| New user created | User | Sent on user creation, except for OmniAuth (LDAP)|
| User added to project | User | Sent when user is added to project |
| Project access level changed | User | Sent when user project access level is changed |
| User added to group | User | Sent when user is added to group |
| Group access level changed | User | Sent when user group access level is changed |
| Project moved | Project members (1) | (1) not disabled |
| New release | Project members | Custom notification |
## Issue / Epics / Merge request events
In most of the below cases, the notification will be sent to:
- Participants:
- the author and assignee of the issue/merge request
- authors of comments on the issue/merge request
- anyone mentioned by `@username` in the title or description of the issue, merge request or epic **(ULTIMATE)**
- anyone with notification level "Participating" or higher that is mentioned by `@username` in any of the comments on the issue, merge request, or epic **(ULTIMATE)**
- Watchers: users with notification level "Watch"
- Subscribers: anyone who manually subscribed to the issue, merge request, or epic **(ULTIMATE)**
- Custom: Users with notification level "custom" who turned on notifications for any of the events present in the table below
To minimize the number of notifications that do not require any action, from [GitLab 12.9 onwards](https://gitlab.com/gitlab-org/gitlab/issues/616), eligible approvers are no longer notified for all the activities in their projects. To receive them they have to change their user notification settings to **Watch** instead.
| Fixed pipeline | The author of the pipeline. Disabled by default. To activate it you must [enable the `ci_pipeline_fixed_notifications` feature flag](../../development/feature_flags/development.md#enabling-a-feature-flag-in-development). |
| Successful pipeline | The author of the pipeline, if they have the custom notification setting for successful pipelines set. If the pipeline failed previously, a `Fixed pipeline` message will be sent for the first successful pipeline after the failure, then a `Successful pipeline` message for any further successful pipelines. |
Notification email messages include GitLab-specific headers. You can filter the notification emails based on the content of these headers to better manage your notifications. For example, you could filter all emails for a specific project where you are being assigned either a merge request or issue.
The following table lists all GitLab-specific email headers:
| X-GitLab-Group-Id **(PREMIUM)** | The group's ID. Only present on notification emails for epics. |
| X-GitLab-Group-Path **(PREMIUM)** | The group's path. Only present on notification emails for epics. |
| X-GitLab-Project | The name of the project the notification belongs to. |
| X-GitLab-Project-Id | The project's ID. |
| X-GitLab-Project-Path | The project's path. |
| X-GitLab-(Resource)-ID | The ID of the resource the notification is for. The resource, for example, can be `Issue`, `MergeRequest`, `Commit`, or another such resource. |
| X-GitLab-Discussion-ID | The ID of the thread the comment belongs to, in notification emails for comments. |
| X-GitLab-Pipeline-Id | The ID of the pipeline the notification is for, in notification emails for pipelines. |
| X-GitLab-Reply-Key | A unique token to support reply by email. |
| X-GitLab-NotificationReason | The reason for the notification. This can be `mentioned`, `assigned`, or `own_activity`. |
| List-Id | The path of the project in an RFC 2919 mailing list identifier. This is useful for email organization with filters, for example. |
Notification of other events is being considered for inclusion in the `X-GitLab-NotificationReason` header. For details, see this [related issue](https://gitlab.com/gitlab-org/gitlab/issues/20689).