System and methods discussed herein are directed to detecting the existence or modification of one or more data assets within a cloud-computing tenancy. The method may include obtaining, by a data management service, a plurality of connection data instances associated with a tenant. Cloud-computing data assets associated with the tenant can be identified from the plurality of connection data instances and presented to the user at a user interface. The user may select which data assets to add to a data catalog managed by the data management service. The data management service may be configured to monitor for new data assets or connections and/or for changes in data and/or connections of previously-selected data assets.