Hi there
We are building a tool for our customer which will allow them to upload (not publish) their creatives from our platform to their google ads accounts.
Now I'm trying to understand what the developer token is? Should every customer in addition to oauth provide us with this developer token too? Or should we create Google Ads manager account and all client accounts under our root account (which is insane actually).
I created manager account + test manager account, get developer token from it (all that I've done using single google account) and tried to perform simple request from examples
here. But I'm getting 403 error and I can't understand what's wrong.
To get oauth token I used
https://www.googleapis.com/auth/adwords scope as said in docs.