Are internal search meta keywords necessary?

[SSFCU]

One of my duties is to improve internal search results. From my reading, good site architecture and content is the way to achieve that. However, for example, are internal meta keywords necessary? I know they haven't mattered externally for a long time, but somebody in my department mentioned wanting this functionality in our CMS.

I just want to make sure I'm not missing anything.

[MoosaHemani]

As Meta keyword is not harmful so you can give it a try but personally I don’t think it will affect unless you really use the most targeted keywords for each page.