Normally I’d agree, and we used some of that in the original form (like maximum hours, checking for negative submissions, etc.) but requests don’t always follow simple logic and more complex logic just led to failures every time a user did something other than take a standard full day off.

Some employees work 7 hours, while others are 7.5, some have flex days and hours that change that, sometimes requests are only for part days, sometimes they may use multiple leave types to cover one off period.

I spent a few hours writing and testing the prompt against previous submissions to fine tune it.

So far it’s detected every submission error in the two weeks it’s been running, with only one false positive.