When should you write a functional (skills) résumé?

The answer would be : when you are making a career change

Functional skill consist of basic qualifications that support the development of practical skills , such as Math, English, and ICT. The employers may use it to determine whether you're able to develop the practical skills needed for the job or not, since they have to basically re-train you because you just move from a different career path

sorry

Explanation:

idk