No. A business deadline is not work authorization or a government decision.
Identify the last unresolved material fact
Clarify duties, employer and credentials before relying on the process. If the actual offer changes, reassess that change rather than carrying forward a conclusion about a different job. Work backwards from the intended start date only after the employer has approved a stable duty description.
Record the passport validity, credential availability, chosen process and any visa step that applies, then leave time to correct contradictions. Hypothetical example: a cartographic specialist receives a revised offer two weeks before travel that replaces map analysis with project coordination across several clients. The original letter, revised agreement and reporting plan show that the relevant proposal has changed.
The sensible decision is to reassess before presenting the case, not to rely on an earlier conclusion about different duties. Admission timing is not permission to start work while a material employment question remains unresolved. Retain dated copies of the offer and any revisions through the actual start.
If the employer changes supervision, location or deliverables, compare the new facts with the earlier analysis before scheduling the applicant’s entry.