Usage
This template is a page header for a category page that is populated by Module:Check for unknown parameters.
To use it, add the following to the category page:
{{Unknown parameters category|TEMPLATE_NAME}}- where
TEMPLATE_NAMEis 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 TEMPLATE_NAME is Infobox, the template also adds the category page to Category:Infoboxes with unknown parameters.
- Full syntax
{{Unknown parameters category|1= |catsort= |is_infobox= |infobox_sort= }}
- Parameter options
|1=first parameter is the TEMPLATE_NAME.|catsort=sets how the category-page is sorted in Category:Unknown parameters. Default sorting is by template name (|1=). Example: Category:Pages using Belgium data templates ... has|catsort=Belgium(not by template name {{Metadata Population BE}}).|is_infobox=yeslists the category page in Category:Infoboxes with unknown parameters. Default listing occurs when template name starts withInfobox. Example: {{Chembox}}.|infobox_sort=sets category sorting in Category:Infoboxes with unknown parameters. Default sorting is by template name. Example: {{routemap-Infobox}}
Example
{{Unknown parameters category|Infobox writer}} (see Category:Pages using Infobox writer with unknown parameters):
 | Administrators: Please do not delete this category as empty! This category may be empty occasionally or even most of the time. |
 | This is a maintenance category, used for maintenance of the Wikipedia project. It is not part of the encyclopedia and contains non-article pages, or groups articles by status rather than subject. Do not include this category in content categories.
This is a tracking category. It builds and maintains a list of pages primarily for the sake of the list itself. They are not part of the encyclopedia's categorization scheme.
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This category contains pages transcluding Template:Infobox writer (talk) with unknown parameters (undefined, misspelled, etc.).
Pages are typically sorted alphabetically by the unknown parameter that is used, e.g. pages using unknown parameter |foo= will be sorted under "F". The name of the page is typically used as a secondary sort key.
Unknown parameters can be detected using Module:Check for unknown parameters in the template. To show the information listed here on a category page, use {{Unknown parameters category}} on the category page.
(This example would also add the category page to Category:Unknown parameters and Category:Infoboxes with unknown parameters).