Help adding affiliate pixel code

[Rohith2]

I want to get order name to be pushed in my affiliate tracking pixel. basically, same order ID as the one that end customer gets. In the pixel I have added, I have added variable to get this as {{order.name}} however on testing I keep getting error like below. I have tried lots of troubleshooting steps but nothing seems to be working.

"ReferenceError: order is not defined"