American Express Global Business Travel has extended its private channel agreement with British Airways, which enables clients to access the carrier's content without its global distribution system surcharge, the TMC announced. The agreement applies to bookings made on any GDS and bookings in the Amex GBT marketplace, which is "important to customers" as "[New Distribution Capability] and modern retailing capabilities evolve," according to Amex GBT chief revenue officer Rajiv Ahluwalia. The length of the agreement extension was not disclosed in the announcement.