Vendor account does not have a confirmed email while integrating Paypal Android SDK

[Goodwin1]

My account was created last 10 year ago. Now i am using as developer account and i created sanbox environment in same account. I am facing below issue  "Vendor account does not have a confirmed email" while integrate the Paypal gateway using by Paypal Android SDK . 

Questions :
----------------
How to confirm email for vendor account.

[MTS_Justin]

Hello,

If the error was returned for a production account, you will need to confirm the email address for the account.

https://www.paypal.com/in/smarthelp/article/how-do-i-confirm-my-email-address-faq1485

The same process applies for sandbox accounts, with the exception that all email communication within our sandbox environment is sent to the "notifications" section of your developer account, the environment does not send emails to external email addresses.

Thanks !