Welcome to the Project Data Service (PDS) Usage and Methods Reference for Microsoft® Project Server.

This reference explains how to use the PDS Application Programming Interface (API) to allow client applications to access Microsoft Project Server portfolio data. Client applications can programmatically log on to Microsoft Project Server and use Simple Object Access Protocol (SOAP) to call PDS API methods. The PDS implements a SOAP listener, which receives method calls in Extensible Markup Language (XML) format and returns an XML response.

This documentation includes example code and information about the following:

• PDS Methods XML

This section is an overview of how to use the XML-based API method to develop applications that can access Microsoft Project Server data from practically any environment.

• Using SOAP to call PDS methods

This section is an overview of how to use SOAP to enable your application to call the PDS.

• Programmatic logon to Microsoft Project Server

This section is an overview of how to log on to Microsoft Project Server.

• PDS usage and methods reference

This section contains reference topics that provide complete details for the PDS API. Methods are grouped into the following categories: Project, Resource, Outline Code, Version, Administrative, and Miscellaneous.

• Error Codes

This section contains a list of PDS error codes and a description of each.