Terminology

This table defines the terms used throughout this guide.
Terminology
Term
Description
ADDACS
Automated Direct Debit Amendment and Cancellation Service. An automated service used by banks that tracks cancellations and amendments made to the DDI.
AUDDIS
Automated Direct Debit Instruction Service. The
Bacs
service that enables your organization to set up new direct debit instructions (DDIs) electronically at your customer's bank.
Bacs
Bacs
Payment Schemes Limited. An electronic system used to make payments and apply credits directly from one bank account to another in the United Kingdom.
Bacs
scheme
Functionality defined by
Bacs
for transferring funds in the United Kingdom.
Bacs
defines two schemes: direct debit and direct credit.
BBAN
Basic Bank Account Number. Every country can have its own standards for format and length. This can vary by country and can include up to four parts:
  • Bank account number
  • Bank code
  • Branch code
  • Check digits
BIC
Bank Identifier Code.
DDI
Direct debit instruction. An instruction given from an account holder to the bank, which authorizes a company to withdraw variable amounts of money at unscheduled times, purchase by purchase. Direct debits are among the most common financial transactions in the world.
FSP
Financial settlement partner. The
Cybersource
account that collects funds on your behalf and settles the funds to your merchant account.
IBAN
International bank account number. This number consists of three parts:
  • Basic bank account number (BBAN)
  • Checking account digits
  • Country code
Mandate
Authorization from a customer to a business giving the business permission to withdraw funds from the customer's account. Mandates are issued in paper or electronic format.
OBT
Online Bank Transfer.
For more information, see the Online Bank Transfers Developer Guide.
OTP
One-time password. An authentication method using a unique password that can be used only once.
SUN
Service user number. A unique identifier issued to the merchant by your sponsor bank on behalf of the
Bacs
direct debit scheme.
SWIFT
Society for Worldwide InterBank Financial Telecommunication.
TSP
Technical service provider. A processor that processes payments for
Cybersource
.