I have created an Ad Manager production account and applied for a developer token. I then created an Ad manager test account on a different email address.
I used the PHP Authentication/AuthenticateInStandaloneApplication.php example to get a refresh token. During this process I authenticated using the ad manager testing account. I added the information to the settings file and added it to my home directory.
For some reason when executing the BasicOperations/GetCampaigns.php it tells me that I don't have access to the client ID of the testing account.
When running the AccountManagements/ListAccessibleCustomers.php example it only shows the production management account.
I've been breaking my brain over this for a few days, how do I access my testing account with the production developer token?