First Data supports all common authorisation protocols, including:

  • GICC, GICC with PIN, GICC/EMV: GICC (German ISO 8583 Credit Card-Protokoll) is a protocol for cashless payment processing with credit card. Basis for this format is also the ISO 8583 format. By this, it is also related to the ZVT protocol which is used regarding POZ and ec-cash.
  • KAAI, KAAI with PIN, KAAI/EMV: In the backend area, the KAAI protocol which is related to the GICC protocol for connections from host to host exists. The main difference to GICC is that KAAI supports less message types but does not require a terminal ID number.
  • UDK (Umsatzdatenformat der Deutschen Kreditwirtschaft / Sales Data Format of German Credit Services Sector): The UDK format supports different currencies. In addition, First Data has enhanced this data format insofar that also additional information like addenda, merchant reference number or DCC can be included.
  • START: This travel agency-specific data format (1800 bytes) supports the following files: transaction file, service code file (defines who will be charged with the disagio) error file (e.g. cancellations). Submissions can be handled with either the contractual partner number or the agency number. 
  • BSP (Billing Settlement Plan): This format is being used for the processing of transactions which are being submitted by airlines. The following information can be included for example: name of airline, IATA No., contractual partner number, transaction and settlement currency, disagio percentage and amount, VAT amount as well as the settlement amount (gross/net).
  • DISH-20: Data Interchange Specification Handbook, format types: CSP&CSI: a format which has been implemented by BSP in order to support the airlines' international transactions.
  • DTA (DatenTrägerAustausch-Verfahren / Data Carrier Exchange Procedure): This data format is being used for cashlmany in order to process 'Cash over Counter' or 'Cash Advance' transactions.
  • VIPS (Vasari Image Processing System): Paper-based receipts are being submitted in a batch file in VIPS format.
  • APACS29b(Association for Payment Clearing Services): UK standard submission format for batch (credit/ debit) transactions which supports Dynamic Currency Conversion.
  • EP2 (EFT/POS 2000): Swiss processing protocol for credit cards which support network operation, terminal management and settlement data.