I am not sure to understand the possibilities of the ADS API for account management.
Can you guide me.
Here is the tree under an account (Oauth2 + DeveloperToken + refreshToken = ok - all accounts are test accounts):
MCC (level 0) -> MCC (level 1) -> Account (level 3)
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I access the MCC (level 0) by the customerServiceClient service and the listAccesibleCustomer() and getCustomer() functions gives data, including the CID of the MCC (level 0)
I am accessing MCC2 through a getGoogleAdsServiceClient service query:
$ query = "SELECT"
. "customer_client.resource_name,"
. "customer_client.level"
. "FROM customer_client";
$ response = $ googleAdsServiceClient-> search ("CID of MCC (level 0)", $ query, ['pageSize' => 1000]);
The API response contains some data on the MCC (level 2) but no CID or customer data ...
From here is it possible to go further down the tree? to level 3 ?