Thread:Project:Support desk/Add categories in templates does not apply/reply (2)

The category will show up eventually in all those articles. If you *need* for it to appear quickly, you can purge all those pages with the API, or doing null edits on those articles.

Those pages will have now pending jobs in the Manual:Job queue. When those jobs are processed, the category will show up on them. You can manually run the pending jobs with runJobs.php