AOR1 is the acknowledgement email you receive approximately 4 weeks after the first set of your documents (for most people its their application form and completed checklist) are delivered to IQAS while AOR2 is the acknowledgement email you receive approximately 4 weeks after the next set and hopefully the last set of your documents (for most people this is their transcript and request for academic documents form endorsed by their school) are delivered to IQAS.
For people who send their entire application in a single package (I don't know how they achieve this to be honest seeing as IQAS insists that the transcript must be sent by the issuing institution), they receive only one AOR (or probably AOR 1 & 2 together) and their application is put in line for processing.
Ok now I get it. Yeah I sent mine in a single package and they replied to me with "This is to confirm that your academic documents were received by the IQAS office and your file is now placed in line for processing".
It doesn't matter whether your course was for 2 or 3 years. They only see what your ECA says. According to your ECA its a university diploma. Since duration is not mentioned it should be assumed as a 1 year.
I recieved my ECA soft copy today. My bachelor degree got evaluated. However my MBA from SMU has not been evaluated. I am wondering if they even checked the transcripts that were sent directly by SMU.