If you sign in to MYOB Acumatica by clicking the purple Secure Authentication button, you might have previously only needed to enter your email and password.
Now, you'll be asked to either:
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Get an authentication code from your authentication app.
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Enter an authentication code sent to your email or SMS.
Why it's happening
This happens because your MYOB Acumatica account is associated with an MYOB two-factor authentication (2FA) account.
If you typically use MYOB Acumatica on the same computer and web browser, you wouldn't often be asked to authenticate. You might not have realised that you even have a 2FA account.
Due to recent 2FA security improvements, you'll now need to authenticate more frequently.
If you're not getting an authentication code
No longer have access to the authentication method you were asked for? Click Try another method. For example, if you were asked to use an authentication app, but you don't have any authentication apps installed on your phone, try email authentication.
If none of the authentication methods work, you need to contact your usual support person for MYOB Acumatica. They can reset your authentication method for you.
After your authentication has been reset, you can set up additional 2FA methods on the the Account security page of My Account (myaccount.myob.com/account/security). This makes the issue less likely to happen again. For more help, see Setting up additional 2FA methods.
System administrators and MYOB partners: Don't clear association for users having trouble authenticating. It won't help them sign in. Only MYOB can reset their authentication method.