Hi there, 

That's great. 

As a first step, I'd research the format of the interview. Since you are not applying for a generalist consultant sort of role, there might be significant changes in what you can expect from the interview. Just reach out to HR and ask what is the format of the interviews (cases? personal fit? technical tests? how many rounds? etc.) 

Once that is clearer, feel free to them come back and post the additional details here on the Q&A so we can help you. 

Aside from this, a master trick is to connect with people who already do this job in the role that you'll be targeting at the same company. Connect with them over linkedin and get one on a 10 min call. Ask them about how they found the recruitment process and if they have any advice in terms of preparation. They're likely to give you tailored / super-specific advice that none of us can do at the moment with the little context we have. 

Aside from this, it's great that you got this interview, but keep on applying to diversify your risk. The guide below explains how to do this in order to maximize your chances of getting at least one offer:

• Maximising your chances of getting a consulting job during an economic downturn

Best,
Cristian

This is going to be a technical and behavioral interview. You can think about a business scenario (how to value or model different industries / types of businesses), but ultimately this is about your finance knowledge and finance-related business understanding (and recent world events / financial markets / local business environment knowledge).

Forget about “strategy case” type of interview. It does not apply to you.