I.e. there are 2 classes in the classification skill. Depending on the detected class the document needs to get matched with a certain document skill. Now if the classification skill returns a result for a new document as "unknown" can it be mapped to a default document skill so that some extraction happens?
It can be done with the IF activity in the Process Skill, i.e.:
...where it is possible to specify certain conditions for documents to go to different steps including based on classification results:
More details about IF activity can be found in the Help: