Which workflow is defined as: Requests approval from a manager of the knowledge base before moving the article to the retired state. The workflow is canceled and the article remains in the published state if any manager rejects the request.
Knowledge - Approval Retire :
Requests approval from a manager of the knowledge base before moving the article to the retired state. The workflow is canceled and the article remains in the published state if any manager rejects the request.If ownership groups is enabled, email notifications with a link to the article are sent to the ownership group members for approval.
If ownership groups is not enabled, email notifications with a link to the article are sent to knowledge base managers for approval.
https://www.servicenow.com/docs/bundle/yokohama-servicenow-platform/page/product/knowledge-management/reference/r_KnowledgeWorkflows.html