How to manage AdWords, YandexDirect accounts?

Question

Google Ads

I set up AdWords and YandexDirect advertising for different sites. What is the best way to do it, create an account for each customer or can you create any sub-accounts? How to manage the budget, is it possible to open different wallets for individual campaigns so that the money of one customer does not mix with another?

Answer 1

When I create it, I personally do the following:
For each client, a separate account, the rights to administer which I gave to my own.

Answer 2

In Google Adwords, you can create a Client Center from which you can create accounts for each individual client. For each account, you can make a separate payment, as well as provide separate access for viewing and editing.
In Yandex.Direct, only agencies have this opportunity, it will be difficult to get it with low activity. Therefore, in Yandex.Direct, you will have to create a separate account for each client.
An account ("wallet") is entered into each of the systems at the account level, there is no such possibility at the campaign level.