That the elections match the decisions
The form should record what you concluded in the review. Surprisingly often it records something else.

The forms are where good plans go wrong. We work through the package with you, check the elections against what you actually decided, and tell you what OPM is currently taking to process it.
People spend months deciding when to retire and twenty minutes filling in the form that records it. The package is where the decisions become permanent, and where a plan that was right on paper quietly becomes something else.
Most of what goes wrong here is not exotic. It is a survivor election box ticked without the spouse’s notarised consent attached, a beneficiary form that has not been updated since a divorce, or a deposit for non-deduction service that nobody mentioned until it was too late to make.
The form should record what you concluded in the review. Surprisingly often it records something else.
Notarised spousal consent, marriage and divorce records, military service documentation and deposit paperwork.
FEGLI, the TSP, unpaid compensation and any lump-sum annuity balance are four separate forms, none of which updates automatically.
Your separation date, the date the package reaches your agency, and when interim payments are likely to begin.
Common questions
It varies with the season and with how complete the package is; OPM publishes its current processing figures each month. Retirements filed in January, after the year-end wave, typically take longest. Expect a period on interim payments at a reduced rate before the annuity is finalised, and plan the first few months around that rather than around the full figure. [OPM PROCESSING TIME]
Once your agency transfers your record, OPM begins paying an estimated portion of your annuity — commonly a substantial majority of it — while the claim is adjudicated. When the case is finalised you receive the difference, backdated. The gap is a cash-flow problem, not a loss, but it catches people who budgeted on the full amount from month one.
Some things, within a limited window before the annuity is finalised. Others, particularly a declined survivor election, are effectively permanent once processed. This is precisely why the package is worth a second pair of eyes before it goes in rather than after.
If you are married and elect anything less than the maximum survivor annuity, your spouse must consent, and the consent must be notarised. A package submitted without it will be returned, which costs weeks.
A benefit review covers this alongside everything else, because in practice it is never a standalone decision.
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Related: Retirement benefit review · TSP guidance · FEGLI & survivor benefits