Since inventory is not maintained in the Network Zone, a Physical Titles search using the Network tab produces no results. Use the All Titles search when doing a search from the Network tab.
Search for new titles in the Network Zone with an All Titles--ISBN search for most accurate results. This includes new records imported from Connexion as Connexion is configured to export to the Network Zone.
It appears suppressed bibliographic records with OCLC numbers did not migrate to the NZ. For the time being, if you do not find a record for your title in the NZ, check the IZ prior to importing a record from Connexion.
If the IZ record is good, link it to the NZ and add inventory.
If the IZ record needs to be enhanced and a better record exists in Connexion, link the IZ record to the NZ and overlay the record with an updated record from Connexion. See Updating a record in Alma.