SOAP API Developer Guide

Introduction to SOAP API
About SOAP API
Release Notes
Quick Start: SOAP API
Core Data Types Used in API Calls
Tooling API Objects in the Enterprise WSDL
API Call Basics
Field Types
Primitive Data Types
Error Handling
Security and the API
Authorization Through External Client Apps or Connected Apps and OAuth 2.0
SOAP API End-of-Life Policy
Using the Partner WSDL
Obtaining the Partner WSDL File
Calls and the Partner WSDL
Objects, Fields, and Field Data and the Partner WSDL
Queries and the Partner WSDL
Namespaces in the Partner WSDL
Package Versions and the Partner WSDL
User Interface Themes
Examples Using the Partner WSDL
Reference
Using the API with Salesforce Features
Glossary
PDF

Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Namespaces in the Partner WSDL

In XML, every tag has a defined namespace. In the enterprise.wsdl, namespaces are handled implicitly. When using API calls with the partner WSDL, however, you need to explicitly specify the correct namespaces for API calls, objects, and fields, and faults. This rule applies to predefined and custom objects and fields.

For Namespace
API Calls urn:partner.soap.sforce.com
sObjects urn:sobject.partner.soap.sforce.com
Fields urn:sobject.partner.soap.sforce.com
Faults urn:fault.partner.soap.sforce.com