Field Failed Validation Error when Submitting Invoices for Approval

The error message 'field failed validation' means that one or more required fields on the invoice are not coded. When clicking Submit for Approval, the error message will appear, and the required field that is not coded will be highlighted in red. In the example below, the Item field is not coded. 

How to Resolve this Error

Code a value to the empty field, and then the invoice will be able to be submitted for approval successfully. System Administrators can edit the required fields in the Coding Fields section of Settings. If the required list item is missing, please run a sync with your ERP to pull in any missing data.