MODX redirects users to the page designated by the error_page System Setting when a page isn't found. From the code, it looks like Articles does the same. If you change the error_page setting to the ID of your 404 page, it should go there once you clear the cache.
Hi BobRay,
do yo mean there is an error_page setting specific for Articles? I have set the system setting error_page. But that doesn't work.
Articles still gives me an index page when an article should give a 404.
so i assume its a bug
RDG
Looking at the Article router code, Articles appears to use the general System Setting, though I'm not sure I have the current version of Articles on my local machine. The code is difficult to follow and it looks like the error_page may only apply if you're using a date-based search.