Hi Vitalii,
Thanks for reaching out to Google Ads Product Support.
With regards to your concerns, in general, the OAuth2 client ID and client secret map your client app to a project in the Google API Console and are used for OAuth2 authentication—enabling your app to operate on behalf of your account.
If you haven’t created your client ID and client secret you may see the documentation below on how to create a client Id and client secret. Please note that, you will need your client ID and client secret to configure your client library.
Links included in this email:
Regards,
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Google Ads API Team |