Warning Flag for NI Category C - For Development Team

I have logged a call with the support team regarding Staffology incorrectly showing a warning in the pay run for someone changing age to 66 this month and the system flagging to change them to NI category C. However, this should not happen until January when the employee is 66 years and 5 months as per HMRC website, so the warning is flagging incorrectly.

The advisor said the system is incorrectly flagging 66 across all employees and to check this manually via the gov.uk website and that the system needs fixed. There is therefore a huge risk currently people could be changed incorrectly as the warning is incorrect, and to do this manually across a bureau is a huge task. The advisor advised to pop it on here for the development team to pick up so the system could be corrected so the warning flags at the correct state pension age rather than giving us incorrect data that is at present.

Thanks