Prophet 21 Cloud Connector

APIs are “a set of subroutine definitions, protocols, and tools for building software and applications.” (Wikipedia). P21 Cloud Web Services are “a software system designed to support interoperable machine-to-machine interaction over a network.” (W3C). They have even been called Web APIs by some.

In 2019, Grey Wolf started the development of P21 Cloud Web Services for integration with the Prophet 21 system. Over time, those APIs have grown and matured into over 30 APIs in the “pool.”

Prophet 21 Cloud is an Epicor hosted ERP.  Since Epicor does not allow any third party software on their hosted server, Grey Wolf is required to use Epicor’s APIs.  The webservices provided by Grey Wolf become the interface to those APIs.

SX Connector is a web service that is consumed by your code or by a Grey Wolf application.

The complete listing of the Web Services Description Language (WSDL), Extensible Markup Language (XML) or JavaScript Object Notation (JSON) definitions are below.

lite version

  • APIs on premise
  • Web Services interface
  • API Key(s) for security
  • Intuitive naming
  • Used for Keystone® and Partner Connect®

full version

  • Exact same code as Lite Version
  • Full access to all Web Services
  • Used for anything BUT Keystone® and Partner Connect®

The difference is the P21 Connector is developed by Grey Wolf with their own APIs. The P21 Cloud Connector utilizes Epicor’s Middleware Server APIs.

The Lite version is used for any Grey Wolf application (like Altitude, Partner Connect, etc).  The Full version is used for applications that are third party or custom in-house applications.


Basically, you will need the Full Version for anything but Grey Wolf applications.