When a user clicks on "Knowledge" menu item or link on Service Portal, none of categories or articles display. Additionally, articles are not available when searched.
This is caused when a knowledge base is not defined on the Portal [sp_portal] record for that Service Portal. Portal record has a "Knowledge base" field which needs to be populated with a valid knowledge base.
- Navigate to Service Portal > Portals.
- Click on the Portal where the issue is happening.
- Locate the Knowledge base field.
- Populate it with an active knowledge base.