Warning when an employee is given NI letter X

We have had an incident whereby someone entered in a start date as someones DOB, Paycircle then assigned them (technically correctly) NI letter X. Even though this person realised their mistake and corrected quickly, they didn't notice the NI letter issue and this didn't automatically update. This has led to a large sort out as the issue wasn't noticed for a few months, all for a simple human mistake.
I cannot find or see evidence of any warnings from Paycircle, and as far as I am aware, most (if not all) payroll providers give regular warnings when an employee is on NI letter X, even HMRC Basic PAYE tools. I urgently request this is implemented to pop up as a warning when someones DOB is entered as under 16 along with information about NI letter X being applied.
I also suggest fellow users check their clients profiles to see if this has happened to them also.