Hello, @Rekha101.

As of now, we're able to add multiple clients to the ProAdvisor account as long as the QuickBooks region or country is the same. If you have clients in another country, you may need to subscribe to the QuickBooks Online Accountant the same country as your client.

You might check this article which you may find helpful in the future: Can I change the account's country?.

Let me know if you have any other questions. I'll be right here to help!