---
title: Parameters passed internally by MSDK when calling POST request to /initiate (1st time trigger /initiate)
url: mobile-app/parameters1.html
---

Applied to all flows:

| Parameter                             | Value                            |
|---------------------------------------|----------------------------------|
| msdk                                  | "true"                           |
| checkoutSessionConfig.channelType     | "MOBILE_SDK"                     |
| checkoutSessionConfig                 | Needs to be converted to JSONString |