---
title: Merchant Registration for eCommerce Providers
url: amazon-pay-registration/intro.html
---

This technical guide provides information to Ecommerce providers about integrating a custom Amazon Pay merchant registration flow for their Ecommerce solution. It covers the following:

* How to initiate the registration workflow
* How to accept merchant credentials when registration is complete

The workflows can be used for both hosted and unhosted Ecommerce providers.

## Prerequisites

In order to integrate with our registration workflow, you will need to work with your Amazon Pay
managed account representative (AR). Your AR will gather some information from you, and then provide
you with your **spId** (platform ID), which is required to integrate with the registration workflow, and an
**ld** (lead code) that helps identify the source of the registrations.

## Integrating with Amazon Pay

Follow instructions in the sections below, depending on whether you are providing a hosted or unhosted
experience to your merchants:

* [Hosted (providers who will make calls on behalf of merchants, using MWS Delegation)](hosted.html)
* [Unhosted (providers who will make calls using the merchant's own API keys)](unhosted.html)