I created a new custom workflow for a new custom module. I am facing 1 challenge and the bad thing is there is very little detail regarding the error.
Event viewer shows error as Workflow threw an exception for the following reason: Enum with 0 is unknown.
Any form of help is appreciated
You gave very little information about what you already did and which document/table it concerns.
Maybe it is related to a status field? All workflow works with a status on the document tables. The status field is an enumeration. Did you used or added the status for workflow?
Otherwise try to share some printscreens for more hints.