To improve navigation of the Activation API documentation, the prior "Guides" section was combined with the "API Reference" section to create the new "Documentation" section. That way, you don't have to switch between the two sections.

New users should authenticate against https://serviceaccounts.liveramp.com/authn/v1/oauth2/token. For more information, see Request an Access Token.

The LR-Customer-Idheader is no longer supported when you set up Parent/ Child Accounts. Use the LR-Org-Id header instead.