Originally Posted by
Micky214
I got the same problem. But I found the solution in the end.
I booked my reward tickets via Cathay. I got the PNR from email doesn't work on Latam website's manage your trips. But then I tried to put it into check-in even though I don't wanna check in(the dates are next year 😂

. And the PNR worked, and in there you will see your order No.
Then you can save that order No. for later use to manage your trip now.
I just booked a LATAM flight using Virgin Atlantic miles. The confirmation number from VS did not work, neither did the e-ticket number. However, YOUR METHOD WORKED FOR ME. THANK YOU!!!!
Edited to add: I even tried using pnr.sh to see if I can get the Latam "order number" from there. No dice. Again, thank you.