Template:Used in system/doc

This is a documentation subpage for Template:Used in system.
It may contain usage information, categories and other content that is not part of the original template page.

This is the {{used in system}} message box.

It is meant to be put at the top of the documentation for templates that are used in the Wikipedia user interface.

Note! It is normal that some of the links in the message box are red.

Usage

The template can be used as is. But it can also take some parameters:

First parameter allows you to change the second half of the heading text. See examples below.
Second parameter is the name of some other talk page if you want discussion to be made there instead. But a better option might be to redirect the talkpage of your template to that other talkpage.

Here are some examples:

{{used in system| in many system messages | Wikipedia:Simple talk }}

This template is used in many system messages.
Changes to it can cause immediate changes to the Wikipedia user interface.
To avoid major disruption, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Please discuss changes at Wikipedia:Simple talk before implementing them.

Technical details

The /sandbox and /testcases links are the standard names for such subpages. If those pages are created then the green /doc box for the template will detect them and link to them in its heading. For instance see the top of this documentation.

Related pages

{{used in system}} – For templates used in the Wikipedia user interface.
{{high-risk}} – For the most high-use (high-risk) templates.
{{high-use}} – For the slightly less high-risk templates.
{{intricate template}}
{{pp-template}} – The protection template that usually is put on high-risk templates.