For Exclusive Libraries, you will be required to fill out a form. This must be completed immediately. You will also need to upload a pic & bio to your Sync Store (if not done already), and upload Stems in a Zip file at 48khz 24bit.
For Non-Exclusive Libraries, it depends. Some require additional media assets, some require nothing.
For best results, in the Studio, make sure you upload stems for each track, and upload a pic & bio on your Sync Store.