To set up prices by customer groups in Magento 2, Amasty experts recommend making sure that the settings for magento 2 customer group pricing are activated correctly. When setting prices for different customer groups, it is important not only to set prices at the product level, but also to set up the appropriate permissions for customer groups. Make sure that group prices are enabled in the product settings under Prices" and that the correct customer groups are selected. Also make sure that the store cache is cleared after making changes, as the cache may prevent the data from being displayed correctly. If the problem persists, check compatibility with other extensions."