I installed Google Ads API Client Library for PHP (AdWords and Ad Manager) from
https://github.com/googleads/googleads-php-lib/setup in adsapi_php.ini
developerToken = "get it from Production Manger Account **** API Center;Access level:Test Account"
clientId = "******"
clientSecret = "******"
using the above clientId and clientSecret generate a refreshToken as shown in oauthPlayground.png
refreshToken = "******"
using ******* (Test Manager Account) and ****** (Test Client Account which is another Google Account) to run GetCampaigns.php
Both of them get Number of results found: 0 as shown in Result.png
clientCustomerId = "******"
What wrong with my settings?
Thanks for your help!