We are having difficulty finding out what the correct value for Merchant ID is. Using the merchant ID given us by Canada Post gets this response: <?xml version="1.0" ?> <!DOCTYPE eparcel [ <!ELEMENT eparcel (error)> <!ELEMENT error (statusCode,statusMessage*, requestID)> <!ELEMENT statusCode (#PCDATA)> <!ELEMENT statusMessage (#PCDATA)> <!ELEMENT requestID (#PCDATA)> ]> <eparcel> <error> <statusCode>-2001</statusCode> <statusMessage>Merchant CPC Id not found on server. </statusMessage> <requestID>30398167</requestID> </error> </eparcel> <!--END_OF_EPARCEL--> I checked in our Canada Post account and what their api requires is a username and password. Which aren't asked for in the Canada Post shipping module. I also spent time on the phone with Canad Post Tech Support and he couldn't figure it out either. Anybody know what's going on here?