You should be able to give a brief explanation of what the organisation’s core business is and be able to describe what the person in the role you are applying for will be doing.
A good place to start is the organisation’s website. You don’t need to learn everything; just get a sense of what they do and how you will fit in. Also check out their social media feeds and read through recent news articles or blogs to get an idea of current business focuses and activities.
From that, you can work out why you’d be a good fit to work there and how your skills match up to the qualities needed in the job description.
If you don’t have much work experience, focus more on what inspires you and how the company fits with your aspirations.
: Avoid being generic and, instead, be specific – “It was really great to read about your current apprentices’ experiences on your website. This gave me a good sense of what I might be doing, [give examples], and I feel that this role will give me great start to my career.”