Hello! Newbie here
I am using the test gateway for Canada and it was working perfectly... until it didn't. I believe if I don't define an specific order_id, then moneris generates one automatically so that's what I've been doing for a while now and it worked perfectly until today, because I was having another completely different bug and now it gets me this error about a duplicate order ID, but all the coonfiguration is still the same. I also tried generating a unique one, based on other posts here, but still does not work, what am I missing?
In reply to Nik_Moneris:
We have a similar issue when a customer puts in the wrong card (Amex) and then tries to use another card. It gives the duplicate order ID.
In reply to CandidClean: