Important: Viewing and managing prices or SKUs in the classic panel is not available after Price Manager is switched to production mode. To manage prices, as well as recommended prices (MSRP) and SKUs, go to UX1 > Portfolio > Prices.
As far as you sell delegated plans, you can customize prices at will, but cannot change plans structure (add or remove subscription periods, add or remove resources). Prices configuration comes to setting custom prices on subscription periods and resources in resource rates. Income is made on the margin between the wholesale price (charged by the service provider) and the retail price you configure.