Is it possible to use the Adwords API token of the root MCC account to link its child MCC accounts (without any API tokens) with other MCC accounts?
The final goal is to given a root MCC account with Adwords API token automatically create child MCC accounts and link them with external MCC accounts. Is it possible with just one API token for the root MCC account, or do I need to request API tokens for each child MCC account to link them with other accounts (i.e. to let them request Standard access to other MCC accounts)?