HI JeanetteC,
Thank you for your post and welcome to the Community Forum.
We apologize for the inconvenience caused by your inability to access your account. Recently, we have taken steps to enable contextual and adaptive multi-factor authentication (MFA) controls with enhanced security capability. Because of this, MFA now determines the necessary level of authentication by looking at a variety of parameters, such as the user's location, device, and activity patterns. For more information, you can check out this link.
To fix this this issue, we do recommend clearing the AccountRight Cache, or you can try it on a browser and sign in to My.Myob, once prompted to 2fa tick the "Trust this device for 30 days" tick box.
Feel free to post again if you still need assistance with this. We are happy to help.
If my response has answered your enquiry, please click "Accept as Solution" to assist other users find this information.
Kind Regards,
Cel