SWIFT ISO 15022 - Code BCSE Signification Buy Contra Short Exempt: Order to buy contra short exempt. Utilisations Type de message Numéro de champ Tag MT502 (Order to Buy or Sell) 18 22a (Indicator) MT513 (Client Advice Of Execution) 35 22a (Indicator) MT576 (Statement of Open Orders) 43 22a (Indicator)