The Salesloft source supports both Full Refresh and Incremental syncs. You can choose if this connector will copy only the new or updated data, or all rows in the tables and columns you set up for replication, every time a sync is run.
Several output streams are available from this source. A list of these streams can be found below in the Streams section.
Full Refresh Sync
Salesloft OAuth credentials
Getting an admin level oauth credentials require registering as partner. Check out here and here