How To Fix WA671 - Receiver type determination func. module &: Error determining interface

SAP Error Message - Details

• Message type: E = Error

• Message class: WA - Messages from Workflow Event Manager

• Message number: 671

• Message text: Receiver type determination func. module &: Error determining interface

What causes this issue?

An error occurred, which could not be identified, when determining the
interface of the specified function module for determing the receiver
type.

System Response

The action was terminated, an event was not triggered.

How to fix this error?

Check the definition of the specified function module for determining
the receiver type.

Error message extract from SAP system. Copyright SAP SE.