Before you can configure your Outlook account for using as email account for the FirstBIT ERP application, you need to create a special auto-generated 16-character password for this application.
For more detailed information, refer to https://account.microsoft.com/security and support.microsoft.com/en-us/account-billing/create-app-passwords.
Here, we provide a brief instructions on the following two methods of generating app password.
If you use two-step verification with your work account and your administrator has turned on options on the Security Info page, you can create and delete your app passwords using the Security info page. Otherwise, you must follow the instructions and information in the Manage app passwords for two-step verification section.
If you no longer need to allow access of the external application to your Outlook email account, you can delete the associated app password.
On the Security info page, select the Delete link next to the App password option for the specific app.
Select Yes from the confirmation box to delete the app password. After the app password is deleted, it's removed from your Security info page.