direct debit setup, DDI, BACS, AUDDIS, ARUDD, modulus checking, payment schedule, DDI viewer, mandate generation, reconciliation, payment request, BACS file creation, DDI states, provisional DDI, confirmed DDI, cancelled DDI, rejected DDI, payment failure, payment success, DDI web process, DDI correspondence, DDI history, DDI manual submission, payment derivation, payment schedule, payment reconciliation, DDI cancellation, DDI closure, BACS codes, DDI error codes, DDI amendment, DDI reinstatement, payment disputes, payment chargebacks, staff portal, DDI templates, DDI letters, DDI emails, UK/US: cheque/check, cancelled/canceled, organisation/organization, payment plan/schedule, bank account details, sort code, account number, mandate form
