SCA Functional Specification

Purpose of the Document

This document is designed for developers and integrators intended to integrate their point of sale (POS)
systems to the Engage platform with Verifone SCA payment application.

The purpose of this document is to present:

• The supported features and functionalities.
• The supported workflows and corresponding use cases.
• The protocol specification and configurations

Document Organization

The document contains the following sections

How to Read the Document

The document may be read differently depending on the needs of the reader. Some suggestions are proposed in this section

Quick overview - The document can be viewed to have a quick overview of the production to understand the features supported. It can present a reader with the overview of payment and non payment related features.

Detailed reference guide - The document can serve as a detailed guide to an integrator to understand the flow of operation for each supported feature. It also gives a complete understanding of different use cases and fallback handled in the workflow.

Reference to use cases - The document can also be used as a reference to a particular use case to be handled by integrator. The integrators can go through a particular use case and understand in detail the flow of operation and error handling for a particular use case.

Reference to error handling and best practices - The document can be viewed to understand the error handling scenario which an integrator has to implement for each of the use cases.

FAQ and Support - The document can serve as a first level support with abundant FAQs to go through. This could be a first level support an integrator can refer before reaching out to support channel.