To set maximum number of days for per diem expenses

Hi Team,

We have a requirement to set maximum number of days for which Per Diem can be reimbursed. If expense template 1, then per diems are reimbursable for maximum 25 days and if expense template 2, then per diems are reimbursable for maximum 40 days. How can this be achieved in Fusion expenses? Any help would be appreciated.

Thanks,

Srishti