How to implement a Custom param?
In order to implement a Custom param you should follow the next steps:
1. Make sure your partner delivers the macro value on the traffic channel url: https://ssp.streamrail.net/ssp/vpaid/56f91cd4d3e3660002000123/512e1d64d1e161000205a871¶m1=[THE SUPPLY PARTNER SHOULD REPLACE THIS VALUE]
2. Then on the Ad Source URL, you can use param1 as a macro: