The phrase "last-minute request" refers to a request that is made at the last possible moment, usually just before an event or deadline. Full definition
There were a variety of last minute requests from MPs, all of which were met with variations on «wait and see». (conservativehome.blogs.com)
The advantages are you can run the payroll to your own schedule, produce your own reports, correct any errors quickly and have the ability to make last minute requests happen. (educationbusinessuk.net)
And our local property manager contact Rodolfo was extremely responsive in helping us with last minute requests. (luxuryretreats.com)