There's a wide variety of content that can be made discoverable in Primo VE.
Ex Libris Documentation:
You can set up collections in Alma and make them discoverable in Primo VE. This could be collections of documents, artwork, etc. See also the section on importing external content below.
Ex Libris Documentation:
You can set up your course reserves in Alma and make them a separate search profile in Primo VE.
Ex Libris Resources:
Ex Libris differentiates between "databases," which have no full-text content, and "electronic collections," which include electronic portfolios and full-text. The out of the box "database search" from the Primo VE Main Menu links relies on the "top level" bibliographic records, such as the record for Academic Search Complete, to be unsuppressed. At cutover, the "top level" bibs for "electronic collections" were suppressed (their portfolios are not suppressed) and the "top level" bibs for "databases" are not suppressed. The content you will find in the out of the box database search are records that are "databases". Databases can also be searched by name in the Basic or Advanced Search. The Discovery Working Group recommended deactivating this search and adding a link to your external A-Z database list instead.
An optional feature you can implement is called Resource Recommender.
Ex Libris Documentation: