Ich glaube du wirfst da etwas durcheinander.
Billing and Settlement Plan (BSP)
BSP is a system designed to facilitate and simplify the selling, reporting and remitting procedures of IATA Accredited Passenger Sales Agents, as well as improve financial control and cash flow for BSP Airlines.
A truly worldwide system: there are BSP operations in some 180 countries and territories. The system currently serves more than 370 participating airlines with an on-time settlement rate of 99.999%. In 2017, IATA's BSP processed $236.3 billion.
BSP is a system designed to facilitate and simplify the selling, reporting and remitting procedures of IATA Accredited Passenger Sales Agents, as well as improve financial control and cash flow for BSP Airlines
www.iata.org