All 8 digit reference numbers from Interac will start with the letters "CA", followed by 6 case-sensitive letters and numbers.
Depending on your bank, the reference number can be found differently. It’s usually in the email you receive after making the transfer, as per the example below:
If this has not been provided via Interac email or Online Banking confirmation, Reference Numbers must be recovered through the sending bank’s Online Banking & Technical Support department in charge of Interac Investigations; this may also be referred to by some financial institutions as the “Acxsys Payment Reference Number”.
For some banks:
RBC: Confirmations are sent via RBC’s WEBSITE version of Online Banking, via the Customer Service Message/Alert Centre; if the Reference is not listed, they must contact RBC through “Send a Secure Message” on the Message Centre and ask for all e-Transfer information including the “Acxsys Payment Reference #"
Additional ways to potentially find this information:
Log into Online Banking
Click on “Message/Alerts”
Click on “Send a Secure Message”
Choose to send the message to “RBC Royal Bank”
Write out message that you are requesting all e-transfer information including specifically the “Access Payment Reference #”