connect pricelist for eshop

Im working with a smaller Swedish company that use a system for billing and bookkeep called Fortnox. Their problem is that everytime they change the pricing on articles in their pricelist(this list is on Fortnox) they have to change the prices on every invidual article on the WordPress site. Are there any solutions to this? I don’t know if fortnox themselves offer any solution to this but i’ve reached out to them for help as well.