I applied for defined cos for 5 years (as I would like that person who comes to the UK can stay for 5 years and get ILR).
However, he would like to come for 3 years and then 3 more years (to save some visa fees until he starts working here and earns more money).
Therefore, COS has start date in 2022 and end date in 2027, while applicant would apply for visa until 2025.
Is this possible and is there anything I (as employer) should do about this?
In the visa application, applicant has to chose is his COS for 3 years or less or more than 3 years. If he choses more than 3 years, he doesn't have the option to get 3 year visa (it automatically selects 5)

Thanks!