Any warning and/or messages that are generated while performing a Weighing Operation are displayed in the Messages panel.

There are two types of messages: Errors and Warnings.
The Error group identifies problems that were found prior to performing an operation that must be corrected. You cannot print a ticket until all Errors have been eliminated.
The Warning identifies problems that you may want to correct prior to completing an operation. Warnings can be ignored.
To get Help for a specific messages, click on the message text and press F1.