The answers to all your questions about Flaterp are here.
There is no limit to the number of supplier types you define; you can create as many different supplier types as you want.
With purchasing management, you can view the list of products you have purchased and access the unit price and quantity of each product. You can also customize and review reports based on daily, weekly, monthly and annual periods.
During supplier selection, you can enable the "Use supplier product matching" feature to align your suppliers with your products and speed up the matching process.