Hello Mohammad,
To confirm whether you account is a production manager account you could check below:
- For a Test account you will be having red label with Test on top right corner, if you don't see that label your account is a production account.
- By clicking on the question mark on top right corner of the account you can confirm if it is a manager account. It should specify "Your manager account customer ID: XX-XXX-XXXX".
If you still has concerns please share the account id of your manager account using incognito window of browser, I will confirm.
Regards,
Sai Teja, Google Ads API Team

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