This parameter is defined at the level Company.It belongs to Chapter TRS (Acc Payable/Acc Receivable) and the Group INV (Invoicing rules),The following parameters are also associated with this chapter and group :
The global variable GTYPINVCUS is associated with it.
The following functions are associated with this parameter :
A/P-A/R accounting > Invoicing > Customer BP invoices
A/P-A/R accounting > Invoicing > Customer intercompany invoice