Keep the earlier submission or draft, the evidence of the actual change and the official communications about the next step. Do not overwrite the history as though the original household was different.
Identify the affected person and application record
Record names, dates and the procedural stage, with appropriate relationship evidence for review. Distinguish a private intake update from a government submission. Do not assume telling an adviser or sponsor has automatically updated the official record. Follow the applicable instructions and retain confirmations without constructing a universal procedure for every type of family change.
Identity and civil documents for every intended applicant, a full immigration and travel history, records addressing any admissibility question, and a written confirmation of the current programme terms taken from official sources on that date. The official source describes further USCIS instructions being issued after an initial payment step, so confirm the current version before assuming another applicant's checklist applies unchanged. Expect identity documents, civil records, evidence of the lawful source of the gift funds and whatever the official form requires for vetting, plus documents for the underlying employment-based process.