While connecting client from Qatar on quickbooks error showing sorry we dont currently support connecting to a client's Quickbooks online company from a different company

You need to signup for QBO Accountant Global account with another email address to manage your clients in Qatar and other "Global" regions.

https://quickbooks.intuit.com/global/accountants-software/#

You can contact @Fiat Lux - ASIA for assistance to create one and they will transfer the account later to you.

Hi mepanisamkit-gma. I'll be glad to point you in the right direction so you can get the resolution you need. To get started, is  your client using QuickBooks Online Canada?