Call the endpoint to resolve LiveRamp's cookie-based identifiers into Identity Envelopes. Instead of using an identifier, the rlcdn.com cookie values are sent and used to perform resolution instead.

LiveRamp's rlcdn cookie, set in the header or the request, may contain multiple values:

• rlas3: LiveRamp's primary third-party cookie, which contains the LiveRamp cookie ID for a specific browser.
• pxrc: The rotation cookie that is used to keep track of the last time a browser was synced with a partner.

Server-to-Server Integrations

When retrieving or refreshing the ATS Envelopes, publishers integrating server-to-server are required to include the X-Forwarded-For header to ensure that the client-side IP address is within the approved countries tied to the ATS Placement