if I work for finance team, what SAP product should I use?

If you work in the finance team, there are several SAP products that could be beneficial for you:
SAP S/4HANA Finance: This is a comprehensive set of financial management and accounting solutions that cover financial planning and analysis, accounting and financial close, treasury and risk management, and more1. It can help you create global cash visibility in real-time, centralize bank relationship management, have an embedded cash flow forecasting and liquidity planning, have a centralized payment factory, and enable a single corporate to bank communication2.
SAP Financial Management Software: This software can help your finance department grow revenue, control costs, minimize risk, and drive sustainability3. It offers a range of solutions for financial planning and analysis, accounting and financial close, tax management, treasury management, quote-to-cash management, and cybersecurity and governance, risk, and compliance1.
GROW with SAP: This solution can help you modernize financial management processes – from accounts payable and receivable to expense and tax compliance4.
The specific product that would be best for you depends on your specific needs and the tasks you perform in your role. I would recommend discussing with your team or a SAP consultant to determine which product would be the most beneficial for your situation. Let me know if you need more information!