There are a host of warning messages in QuickBooks. Unfortunately, QuickBooks allows the user not to display them. This is a weakness of QuickBooks, since many users are unaware of the full significance of these warnings.
An abundant error committed by users of QuickBooks involves the posting of an income account item to an expense account item, or vice versa. For instance, an item used on sales invoices is selected entering a purchase order, vendor bill, or check. In order to minimize this error, convert the item to a two-sided item, with both an income and an expense account.
If you have requested QuickBooks not to display warning messages in the past, go to General > My Preferences and check “Bring back all one time messages”. Better yet, contact your Certified QuickBooks ProAdvisor or contact us for additional assistance: Accountants CPA Hartford.