Which details help?
For a home or business, identify the entrance, unit where relevant, whether a working key exists and what the door does when used. A shared lobby is different from a tenant's own door. The residential and commercial locksmith pages explain those differences.
For a car, give the make, model, year, remaining-key situation and exact parking position. Our automotive information explains why support needs confirming for the particular vehicle. Include the level if the car is in a garage.