# Getting started - DSP onboarding

> Begin onboarding as a Demand-Side Platform (DSP) partner to access ironSource’s inventory and launch programmatic ad campaigns.

Refer to the following steps to get started with DSP.

## Prerequisites

Before setting up to use DSP:

* Fill in the [iSX questionnaire](https://docs.google.com/forms/d/e/1FAIpQLSe-6BMDyPtiuT4cjvWR6JjHq39Hh9rlyJZuKllODL6d5uAYlQ/viewform?usp=send_form).
* Share existing your technical integration docs with your account manager or suppor team, if applicable.

## Setup

Send your account manager or support team member the following information:

* Endpoint URL
* Any special filtering requirement for the testing period

### Testing period

ironSource will start sending low scale inventory (10 QPS) according to the targeting conditions requested above.

* Discrepancy Check: ironSource and Bidder will share the number of impressions and revenues counted during the testing period. When numbers align on both ends, ironSource will be able to scale QPS.
* Account Assignment: ironSource will introduce you to your account manager who will be managing your account.

If you have difficulties at any step, contact [isx-operations@is.com](mailto:isx-operations@is.com).