The MT 203 consists of two types of sequences:
The first sequence provides details of the transaction between the Sender and Receiver, that is, the value date and total amount to be transferred, as well as any other information about this transaction, as necessary.
The second sequence must appear at least twice and, in order to expedite processing, not more than ten times. It provides details of each transaction between the Receiver and a financial institution to which the funds will be transferred. Each sequence includes a TRN, the reference of the related transaction, the amount and currency code to be transferred, the identification of the beneficiary institution and any other institution(s) through which the funds will pass and any other information about the transaction, as necessary.