Please check if the feature has not already been requested.
If not, please describe it

Change how the unit numbering of a rack is
When I add a rack in GLPI it assumes U1 is the bottom-most U. On my rack U1 is the top-most U. It would be nice if this was configurable for racks

Maintenance Mode Scheduling
The maintenance mode would be much more useful if it could be scheduled, showing a message to all users after login letting them know about the maintenance's date, time and (expected) duration, as well as a customizable message.

MS Teams call buton in card
When we hover a requester in ticket, a card appears.
The idea is to add a link/buton that will call the requester in MS Teams.
Maybe by adding a specific field in user profil that will be sync with Active Directory.

Tinymce with Table of Content plugin in knowledge base
Would be very useful to have a Table of Content in each knowledge base article.
The TOC TinyMCE plugin turn each heading in a summary topic.

Focus on form when addind a followup
When you click the icon to add a followup, the form is displayed but it does not have the focus
you need to click it to start writing ...
would be nice to set focus on the form

User password change to require old password
When user attempts to change his password he is not being required to type his old password.
This is serious security issue.
Password reset from should require old one.

Technician group assigment Round Robin
- assign the ticket to a member of a group (all technician member receive a notification and many time 2 techician work on a ticket that is working on by an other one already)
- A mechanism that if the ticket is not processed by a tecnician in x minutes or hours, it is re-assigned to the group (or a next tecnician).

Warn user about unsaved changes when leaving the ticket creation page
When leaving a page, for example the ticket creation page, users should be warned about unsaved changes.
Current behaviour: While writing a ticket, a user decides to "show all locations", "show all categories", or anything else that takes him to another page. The user is not notified about unsaved changes, and once they return, the form is blank again.
Expected Behaviour: When the Ticket form is not empty, GLPI should ask if the user wishes to continue and lose any unsubmitted details.

Hi, Is it possible to have an export of all reservation?
Hi,
Is it possible to have an export of all reservation?

Option to add validation templates
You can create text templates for tasks, solution and follow ups, but its not possible to create a text template to validations.
Customer support service by UserEcho