Hi Prince,
To create knowledge from an incident or problem, select the Knowledge check box on the incident or problem form and close the incident or problem record.
The short description from the incident or problem becomes the knowledge article title. Articles created this way are added to the knowledge base specified in the property glide.knowman.task_kb.
Depending on the value of the glide.knowman.submission.workflow property, knowledge created from an incident or problem may require additional approval. When this property is true, a submission record is created instead of a knowledge article. A user with the knowledge role must approve the submission to create a knowledge article.
Approving a submission creates a new knowledge article using the submission content.
https://docs.servicenow.com/bundle/jakarta-servicenow-platform/page/product/knowledge-management/tas...
This has been done by "Incident Create Knowledge" business rule. The condition "current.incident_state.changesTo(IncidentState.CLOSED) && current.knowledge == true", you can modify this condition or create new business rule or script using the logic of it.
Thanks,
Kalindi Mehta
