The Portico API supports Canadian clients processing Interac debit on Debit based services of the Portico API. These transactions require debit EMV certification. A normal Interac EMV transaction should contain the EMV tag data obtained from the terminal/chip card. All card present debit requests in Canada must process as Interac with the appropriate application id in the request.

All Interac transactions must send the POSReqDT in the request header and must also include both CardholderLanguage and POSSequenceNbr in Block 1.

Interac debit processing is supported on the following transactions:

• DebitAddToBatch
• DebitAuth
• DebitReturn
• DebitReversal
• DebitSale

For additional information, contact your representative.

• Transaction Security
• Debit Transaction Responses
• Approvals
• Declines
• Reversals
• POSSequenceNbr
• POSSequenceNbr Structure
• Incrementing POSSequenceNbr
• MessageAuthenticationCode
• MAC Verification on Transaction Response
• Resetting the MAC Value
• MacKey
• Key Exchange
• Interac Device Keys
• Interac PED Serial Number
• Interac Pre-Authorization & Completion