We used get_orders_orderhistory function til now for our extension, which we developed. But we want to upgrade from 3.3.5 to 3.7 (because of mailinslist extension). In this version we get an error. Is there anyway to use this function again?
> Is there anyway to use this function again? No. this has been removed as of 3.5 (internal functions are subject to change without notice and really should not be used for precisely that reason) See also changelog of v3.5 in the plugin