Mandatory
This field specifies the debtor whose account will be debited according to the direct debit instruction specified in this occurrence of sequence B.
Although the presence of Account is optional in the field format, for the purpose of this message the Account of the debtor must be present (Error code(s): E10).
The BIC/BEI must be a SWIFT registered address, either connected or non-connected (Error code(s): T27, T28, T29, T45).