Technologies for migrating content items from a storage network to an online content management system are provided. In some examples, a method can include receiving a request to migrate a share on a server at a source environment to a content management system that is separate from the source environment, the share having a structure representing a hierarchy of each content item within the share; identifying accounts at the source environment having access permissions configured at the source environment for the share on the server; mapping the accounts at the source environment to corresponding accounts at the content management system; creating a copy of the share at the content management system, the copy of the share being created in association with the corresponding accounts on the content management system; and migrating, to the content management system, the access permissions configured at the source environment for the share on the server.