Do we need to populate ra_interface_salescredits_all table if we use the salesrep in auto accouting

 Hi all,        Do we need to populate the ra_interface_salescredits_all table if we use the salesrep in auto accounting set up to pull one of the segment for revenue account?We want to import invoice data by using auto invoice interface process and we dont want to populate salescredit information.is it possible to use auto accounting without populating salescredits interface table?If we need to populate salescredit interface table can we pass 0% salescredit in the table ?We dont want to give credits to salesrep.Please reply me with your answers.