@bjoern__koth, thank you very much. This actually helps a lot. We'll try passing it within the Identity Map. 

Thanks @Tof_Jossic, that's what I found as well. Just wanted to make sure I didn't miss anything. I guess you're not aware if Adobe is working on FPID support for Mobile SDK or Edge Network API?

Hello, our customer is thinking about a server-side data collection with Adobe Edge Network via Edge Network API. Regarding user identification we would like to go with the First Party ID. Regarding the documentation, the usage is currently only supported with Adobe WebSDK. Does anyone have an idea ...