Solution module in portal helps portal users to get probable solutions before generating any case.
The portal users will get the Case Deflection as per the Case Deflection widget that is configured from the Page Builder.
Portal Users can add queries or issues in the search solution box if they want to or they can also directly add a case. If they have searched and there is any appropriate solution related to that query, then the solution will get listed.
If no solution is found related to portal users queries or issues or they didn’t find which they are looking for then they can add a case by clicking on the + Create Case button. By clicking on it, the portal users will redirect to the Create Case page as per the Case Deflection widget configuration.