WorldPay FuturePay add merchant code / account ID
The current WorldPay FuturePay implementation has no field to specify the merchant code / account ID, which means it's not possible to send payments to specific accounts. This is a big problem where a WorldPay account has more than one ID (as is the case with operating different brands, company divisions or websites).
The following would be the form element for this, where MYCOMPANY is the value of the account ID.
Full documentation: http://support.worldpay.com/support/kb/bg/pdf/rhtml.pdf