Field help (BPCDEP) 

Code used by default for the current BP to identify a series of early discount and late charge rates (up to 12) to be applied to a payment according to a number of days in advance or days late with respect to the open item date.
In the BP/Company tab of the BP record, it is possible to define a different discount by default according to the company. When there is an existing value for a company, it is proposed in priority.