Keyword research goes wrong when it stops at a long export. The value comes from the filtering and the decisions that follow.
Collect broadly, then narrow
Pull terms from competitor listings, your own search term reports, and category browse paths. Volume alone is not a shortlist.
Validate intent before you commit budget
Check the first page of results for each shortlisted term. If the products shown do not match yours, the traffic will not convert regardless of ranking.
Turn the list into actions
Every retained keyword should map to a placement: a title, a bullet, backend terms, or a campaign. Unassigned keywords are research debt.