Commons file and category pages with a monument template with unlisted (unknown, faulty) identifier should be automatically placed into special tracking and maintentance categories like "Monuments with unlisted identifiers".

Additionaly, some detection and warnings should be implemented into the national templates to exclude IDs which are not in the expected format (text instead of numbers, wrong number of digits etc.).

(https://toolserver.org/~platonides/wlm2013/users.php is able to recognize and count unlisted identifiers)

Version: unspecified
Severity: enhancement