Three things that the administrator can do to get more details for debugging when encountering an unhandled fault error are:
Create a fault connector. A fault connector is a special type of connector that handles errors thatoccur in a flow element, such as an assignment, a loop, or an action. A fault connector can route the flow to another element or end the flow with an error message.
Add a Display Text component which includes {! SFIow.FaultMessage}. A Display Text component is a screen component that displays text on a screen element in a flow. The {! SFIow.FaultMessage} is a system variable that contains information about the error that occurred in the flow, such as the element name, error type, and error message.
Create an error connector. An error connector is a special type of connector that handles errors that occur in a screen element, such as invalid user input or required fields beingleft blank. An error connector can route the flow to another screen element or endthe flow with an error message.
Verified References: https://help.salesforce.com/s/articleView?id=sf.flow_ref_elements_connector_fault.htm &type=5 https://help.salesforce.com/s/articleView?id=sf.flow_ref_elements_screen_component_display_text.htm &type=5 https://help.salesforce.com/s/articleView?id=sf.flow_ref_elements_connector_error.htm &type=5
