Error Handling

Many nodes have a red error port that is used when the node operation fails for any reason. If the error port isn't connected to anything, the workflow will fail immediately, but workflow designers can use this to include error handling, like sending an error email.

Picture from the Design page of a Workflow that checks if a file exists in a directory and subsequently loads the file. If the "Check if file in directory" node fails on Execution, it will step into the Send Error E-mail node.

If a node has Failed and the Error port has been stepped through, the Workflow will end showing status Failed even if all subsequent nodes Finish.