Conversion errors are reported when Alteryx cannot convert data from one field type to another. You can set a threshold for the number of Conversion errors to allow per workflow in the Workflow - Configuration window.
Conversion errors appear in orange text:
● ProcessNodeDbfInput10: Enrollment: is not a valid number.
This Conversion Error is reported because the field type for "Enrollment" is a number, yet there are strings within the field. The string values are inconsistent and should be fixed. The values can be cleaned via a Formula tool or filtered out with a Filter tool.
Users have the ability to limit the number of Conversion Errors that are reported. This threshold can be determined per workflow from the Workflow - Configuration tab.