You have to fill out the form.
Eligibility
Personal info
Secondary education
6th form/post-16 -- does not include university degrees
work experience
contextual information
supporting questions - Interesting topic + why interesting to you, why interested in the apprenticeship and specifically hsfk, what skills/attributes you have that are beneficial and examples
If you pass that stage you get a Situational Judgement Test and a personality test.
The SJT is videos of example situations and you have to choose most effective and least effective.
The personality test you have to order some traits in most descriptive of you to least - these were tricky as you could only pick one rating for each and some of them weren't even compatable to the point where if you're one you won't be the other. Personally I found it difficult as some of the options were same level of descriptive or less descriptive than what I wanted to put.