Regardless of server-to-server or client-to-server mobile app bidding, you must follow the criteria below in order to implement a correct and optimal integration.
buyeruidfrom client using Audience Network SDK.
x-fb-pool-routing-tokenthat contains bidder token as its value.
For more information on how to combine bidding and existing waterfalls see Integrating Bidding-Based Auction With Existing Waterfall
In addition to the optimal integration criteria, there are some highly recommended best practices that you should follow unless there are valid reasons to do otherwise.
x-fb-an-errorsHTTP header on bid responses with status code other than 200 to be used in troubleshooting.
x-fb-an-request-idHTTP header on all bid responses to be used in troubleshooting.
Technical guide to get started with Audience Network
Facebook Audience Network Mobile App Bidding architecture and other Concepts
Step-by-Step tutorial for mobile app server-to-server bidding integration
Latest versions of Audience Network SDK downloads page