How to get an adwords account client customer id to link it to a MCC account?

Sunday, May 4, 2014

I'd like to add an Adwords account to a MCC account via Google Adwords API on my web application. I guess I just need to add a ManagedCustomerLink

The thing is I don't know how to get clientCustomerId. I thought by authenticating the user via OAuth2 on my application with the matching scope, I could somehow get their clientCustomerId but I could not find it.

Thank you by advance for your help !