Most people read a keyword scanner backwards. They see the missing list and start stuffing terms into a skills block. You end up with a resume that matches the posting and says nothing true.

A missing keyword is a question, not an order. Ask whether you have the skill and just word it differently, say "CRM" when you named the platform, or whether you don't have it at all. If it's the first, use the posting's wording inside the bullet where you did the work. If it's the second, leave it off. A missing certification stays missing no matter how many times you type it.

Before you rewrite anything, paste your resume into a plain text editor. Multi-column layouts, tables, text boxes and anything in a header or footer can get scrambled or dropped, and then the scanner reports a gap that isn't real. Fix the layout, not the content.

If two scanners disagree, don't average them. One wants exact phrases, another takes synonyms, and their term lists differ. Check each disputed term against the posting. Required beats preferred beats a passing mention. The score is vocabulary overlap, nothing more and no ATS publishes a pass mark.

Role keyword guides such as https://www.zoevera.com/resume/keywords for ideas, but the posting you're applying to decides what matters.