Marketing Cloud API

Intro to Marketing Cloud APIs
REST API
SOAP Web Service API
SOAP API Performance
Get Started with the SOAP API
Work with SOAP Web Service API
Methods
Objects
Simple Development Scenarios
Supported Operations for Objects and Methods
Technical Articles
General
Check the Results of an API Call
Perform a Data Extract
Create, Retrieve, Update, and Delete Folders
Get the Fields Available for Retrieval
Incoming Date Normalization
Perform a File Transfer
Resolve Retrieve Call Errors
Retrieve All Records Since Last Batch
Retrieve More than 2500 Records Using the ContinueRequest Property
Retrieve the Availability Status of a Marketing Cloud Account
Review SOAP Envelopes to Retrieve Information
Test SOAP Envelopes
Administration
Asynchronous Processing
Automation Studio
Campaigns and Programs
Code Samples by Language
Data Extensions
Emails
Filters
Groups
Import Definition and Activity
Portfolio
Scheduled Messages
Send Definitions and Email Message Interactions
Subscriber Attributes
Subscriber Lists
Subscribers
Tracking
Triggered Sends
Marketing Cloud for Appexchange API Guide
API Best Practices and Use Cases
API Errors

General

The following are general technical articles for SOAP API.