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{{Documentation subpage}}
<!-- Add categories where indicated at the bottom of this page and interwikis at Wikidata -->

== Usage ==
This template is a '''page header''' for a [[Help:Category|category]] page that is populated by [[Module:Check for unknown parameters]].

To use it, add the following to the category page:
: {{tlxi|Unknown parameters category|TEMPLATE_NAME}}
: where ''<code>TEMPLATE_NAME</code>'' is the name of the template the category is tracking.

The header displays message boxes, a table of contents, and will add the category page to [[:Category:Unknown parameters]].
When the first word of ''<code>TEMPLATE_NAME</code>'' is ''Infobox'', the template also adds the category page to [[:Category:Infoboxes with unknown parameters]].

; Full syntax
:{{tlx|Unknown parameters category|2=1={{spaces|1}}|3=catsort={{spaces|1}}|4=is_infobox={{spaces|1}}|5=infobox_sort={{spaces|1}}}}

; Parameter options
* {{para|1}} first parameter is the ''TEMPLATE_NAME''.
* {{para|catsort}} sets how the category-page is sorted in {{cl|Unknown parameters}}. Default sorting is by template name ({{para|1|}}). Example: [[:Category:Pages using Belgium data templates with unknown parameters‎|Category:Pages using Belgium data templates ... ]] has {{para|catsort|Belgium}} (not by template name {{tlf|Metadata Population BE}}).
* {{para|is_infobox|yes}} lists the category page in {{cl|Infoboxes with unknown parameters}}. Default listing occurs when template name starts with <code>Infobox</code>. Example: {{tlf|Chembox}}.
* {{para|infobox_sort}} sets category sorting in {{cl|Infoboxes with unknown parameters}}. Default sorting is by template name. Example: {{tlf|routemap-Infobox}}

== Example ==
<code><nowiki>{{Unknown parameters category|Infobox writer}}</nowiki></code> ''(see [[:Category:Pages using Infobox writer with unknown parameters]]):''
{{Unknown parameters category|Infobox writer}}

''(This example would also add the category page to [[:Category:Unknown parameters]] and [[:Category:Infoboxes with unknown parameters]]).''
<!-- not active yet, under construction. Sept2019
==Tracking==
* {{clc|Category:Template:Unknown parameters category errors}} -- Parameter 1 is missing
* {{clc|Category:Pages using Unknown parameters category with unknown parameters}}
-->

== See also ==
* {{clc|Unknown parameters}}
* {{clc|Infoboxes with unknown parameters}}
* [[Module:Check for unknown parameters]]

<includeonly>{{sandbox other||
<!-- Categories below this line, please; interwikis at Wikidata -->
[[Category:Category namespace templates]]
[[Category:Templates that add a tracking category]]
}}</includeonly>