---
title: "Integration Flow"
slug: "integration-flow-v2"
updated: 2026-06-08T14:13:25Z
published: 2026-06-08T14:13:25Z
canonical: "developer.upgrade.com/integration-flow-v2"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://developer.upgrade.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Integration Flow

### Technical Overview

To better understand the integration flow, let’s follow an overview of Flex Pay’s SDK Integration from customer interaction to the behind the scenes magic ✨. This will allow you to better customize your integration and configure as per your needs!

![up-integration-flow](https://cdn.document360.io/ff52d920-99b4-4c2b-9b32-5d5fe9700cb0/Images/Documentation/NEW%20_%20Integration%20Flow_%20JS%20SDK.svg)