What it is
Certifications are the claim record: availability, work search, earnings, and severance. Weeks filed late are usually lost, earnings that do not match the state wage record trigger a review, and a repayment notice follows a pattern of inconsistent certifications.
What to do about it: Write the separation facts once and reuse the same wording every week. Fix the week count in writing before the first certification.
Plain-language description of US practice, not legal, tax, or financial advice. The paired guide carries the citations, dates, and thresholds; the state pages carry the local windows.