Changing All Prices from a single table

Hello! I've recently finished setting up a store for a b2b warehouse that also sells b2c. It would really help a lot to be able to change all the prices from a centralized table, as I have different prices for different user groups. It's very hard to keep up with wp import because I also have a batch numbers and inventory management plugin and i have to use 2 import tools and it's too much for the client. Do you know any plugin that might help me manage all the b2b prices from a single centralized table instead of entering each product separately? Thank you!