After running fix script "SPM Clean-up on portfolio and taxonomy" to clean-up taxonomy tables referential fields remain for these tablesIssue There is an out of the box fix script which deletes the service_portfolio, taxonomy_node and taxonomy_layer_definition tables This fix script exists because these tables are replaced in New York by "spm_taxonomy_layer_definition" and "spm_taxonomy_node" After executing the fix script there are two fields remaining which reference these tables -> cmdb_ci_service.taxonomy -> cmdb_ci_service.service_portfolio This knowledge article provides update sets which can be applied to remove the fields ReleaseNew York and later releasesResolutionApply the following attached update sets to remove the associated fields cmdb_ci_service.taxonomy => sys_remote_update_set_a1b8389bdb9b5458f8a628664a961929.xmlcmdb_ci_service.service_portfolio => sys_remote_update_set_0c561cd1db6b5c9cf8a628664a9619e3.xml If you apply these update sets please look to thoroughly test this process in a sub-production instance before applying to production Related LinksFor additional information please refer to documentation regarding how to apply an update set at doc.servicenow.com