How should an administrator add a new look up through the ES app?

 The correct way to add a new lookup through the ES app is to upload the lookup file using Configure > Content Management > Create New Content > Managed Lookup. This allows the user to create or select an existing lookup file and definition, specify the lookup type, label, and description, and enable editing of the lookup file. This also stores the lookup file at the application level, which makes it easier to edit and share. The other options are either incorrect or not recommended for ES. Uploading the lookup file in Settings > Lookups > Lookup table files does not create a lookup definition or a label and description for the lookup. Uploading the lookup file in Settings > Lookups > Lookup Definitions does not upload the lookup file itself, but only creates a definition for an existing file. Adding the lookup file to /etc/apps/SplunkEnterpriseSecuritySuite/lookups requires manual editing of the file system and is not recommended for ES. References =

Create and manage lookups in Splunk Enterprise Security