Vertex API

Take control of valuable customer data.

Marketers are using more tools than ever before to promote their brands, sell their products & services, interact with consumers, and measure the results of their efforts. Creating a 360-degree view of the customer can be an overwhelming task – how can you integrate your data points to maintain up-to-date customer profiles, and use that data to make informed marketing decisions?

API access from Vertex lets you maintain control of your valuable customer database while enjoying seamless data integration between your email marketing initiatives and other applications. Using XML and posting scripts, API access allows you to handle data transfers in real time, eliminating the need for manual imports and exports.

API Reference Guide

Vertex’s application programming interface (API) enables our clients to directly access powerful features of eMS Enterprise via system-to-system integration.

This guide is provided to outline the basic functions, followed by a list of specific API Methods designed to meet each client’s individual needs.


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Please contact your Vertex account representative for login credentials to access the Online API Reference Guide. If you do not have a representative assigned to your account, please send an email to