Library prices are stored separately from consumer prices, and in an ONIX feed we can send either or both. They are identified in the ONIX feeds using different codes. Consonance can also store and send member/subscriber prices, pre-publication prices and a whole bunch of other more esoteric price types that ONIX has codes for.

Some library suppliers will accept either a consumer price to which they will then apply a multiplier, or the library price stored in the system.