Hi Anama-engineerin, 

Welcome to QuickBooks Online and thank you for choosing us!

To convert your MYOB file to QBO, please click the link below and you will be directed to an online form. Once you have filled this out, Odyssey will send you a confirmation email. If you have already created your QuickBooks file, you then need to invite Odyssey as a user via: Inside QuickBooks Online, go to Manage Users and invite us as a Company Admin . The email address is: qbo_au30@odyssey-resources.com 

https://quickbooks.intuit.com/au/switch-to-quickbooks/

If you have further queries please don't hesitate to let us know.