Send the following on WhatsApp
Continue to ChatYou are not authorized to sign in. Verify that you are using valid credentials and that you have been setup as a user in Microsoft Dynamics NAV https://www.pardaan.com/2012/12/17/you-are-not-authorized-to-sign-in-verify-that-you-are-using-valid-credentials-and-that-you-have-been-setup-as-a-user-in-microsoft-dynamics-nav/