How to create and manage groups in Redmine

Table of contents

A practical guide to using groups in Redmine projects
What are groups in Redmine?
Creating Redmine groups
Adding members and assigning projects
Managing user groups in Redmine
REST API for Groups
Working with groups
Working with a single group
Group memberships
Remove user from group
Benefits of using groups in Redmine
Why upgrade Redmine to Easy8 Redmine Edition?

TL;DR

Managing user groups in Redmine helps administrators save time by assigning roles and permissions to entire teams at once, making project access and user management more efficient.

A practical guide to using groups in Redmine projects

Redmine is a powerful open-source project management tool that allows administrators to organize users efficiently using groups. Groups simplify the administration of user permissions and project memberships by enabling bulk assignment of roles and privileges. 

This guide provides a detailed expert walkthrough on creating and managing groups in Redmine to help administrators streamline user management within their projects.

What are groups in Redmine?

In Redmine, groups are collections of users created by administrators. Instead of adding users individually to projects, groups can be added as project members with assigned roles, inheriting permissions for all group members. 

This approach is ideal for managing teams such as developers, QA, or management groups, especially in installations with many users.

Redmine groups behave like regular users in terms of project membership and roles, allowing Redmine administrators to efficiently assign access rights and manage project collaboration.

Administrators can create and manage user groups in Redmine to save time in management of project memberships. Groups can be added to projects just like individual users, with the same role assignments. When a user is added to a group, they automatically inherit all of the group’s permissions. Expectedly, removing user from a group takes away their permissions previously gained from the group.

Creating Redmine groups

To create a group, follow these steps:

1. Go to Administration
2. Click Groups
3. Click New Group
4. Enter the group name in the Name field
5. Click Create

Adding members and assigning projects

To add members to a group, follow these steps:

1. Go to Administration >> Groups
2. Click the name of the group you want to edit
3. You will see three tabs: General, Users, Projects
• General - Change the group name
• Users - manage members of the group - click Add to confirm
• Projects - Select a projects where th groups should be a part of, assign a role, click Add

Example of group users tab

Adding members to a group

Example of group project tab

Assigning a group membership into projects (from the group setting)

Managing user groups in Redmine

Go to: Administration > Groups

Here, administrators can manage groups of Redmine users. 

Note: Adding users to groups simplifies role management, since entire groups can be assigned to projects with the same roles as individual users.

Each group is listed by its name and number of members. You can also filter groups by keyword (e.g., group name).

Creating new group in Redmine

To create a new group, click New Group, enter a name, and click Create or Create and Continue if you want to add another group immediately.

To edit a group, select it from the list. You can change the group name, add users, or assign projects. Each action is managed in the corresponding tab.

To add users to a group, open the group’s Users tab, click New User, and select one or more users to add. When a user is added to a group, they automatically inherit all of the group’s permissions (e.g., project roles).

REST API for Groups

Working with groups

Route: /groups.:format

GET

Returns the list of groups.

This endpoint requires administrator permissions.

Example:

GET /groups.xml

Response:

<groups type="array">
  <group>
    <id>53</id>
    <name>Managers</name>
  </group>
  <group>
    <id>55</id>
    <name>Developers</name>
  </group>
</groups>

POST

Creates a group.

This endpoint requires administrator permissions.

Parameters:

• group (required): a hash of group properties, including:
  • name (required): the group name
  • user_ids: IDs of the group’s users (an empty group is created if not provided)

Example:

POST /groups.xml

<group>
  <name>Developers</name>
  <user_ids type="array">
    <user_id>3</user_id>
    <user_id>5</user_id>
  </user_ids>
</group>

POST /groups.json

{
  "group": {
    "name": "Engineers",
    "user_ids": [3, 5]
  }
}

Response:

• 201 Created: group was created
• 422 Unprocessable Entity: group was not created due to validation errors (response body contains error messages)

Working with a single group

Route: /groups/:id.:format

GET

Returns details of a group.

This endpoint requires administrator permissions.

Parameters:

• include (optional): a comma-separated list of associations to include in the response:
  • users
  • members

Example:

GET /groups/20.xml?include=users

Response:

<group>
  <id>20</id>
  <name>Developers</name>
  <users type="array">
    <user id="5" name="John Smith"/>
    <user id="8" name="Dave Loper"/>
  </users>
</group>

PUT

Updates an existing group.

This endpoint requires administrator permissions.

DELETE

Deletes an existing group.

This endpoint requires administrator permissions.

Group memberships

Route: /groups/:id/users.:format

POST

Adds an existing user to a group.

This endpoint requires administrator permissions.

Parameters:

• user_id (required): ID of the user to add to the group

Example:

POST /groups/10/users.xml

<user_id>5</user_id>

Response:

200 OK: User was added to the group

Remove user from group

Route: /groups/:id/users/:user_id.:format

DELETE

Removes a user from a group.

This endpoint requires administrator permissions.

Example:

DELETE /groups/10/users/5.xml

Response:

200 OK: User was removed from the group

Benefits of using groups in Redmine

• Simplified permission management: Assign roles once per group instead of per user, saving time and reducing errors.
• Consistent access control: Ensure all users in a group maintain uniform permissions across projects.
• Scalability: Efficiently handle large numbers of users by managing them in groups.
• Improved collaboration: Quickly set up project teams and adjust memberships as needed.

Why upgrade Redmine to Easy8 Redmine Edition?

Managing a large number of users, groups, and project memberships in Redmine can become a performance bottleneck—especially at scale. These bulk operations may even overload your application server or risk corrupting database entries. 

In Easy8 Redmine Edition these operations are done asychronously (on the background), which prevents from overloading the server or corrupting the membership data in the DB. Try Redmine upgrade—Easy8 Redmine Edition!