Salesforce SOAP API
Comprehensive SOAP-based API for enterprise integrations with full CRUD operations on Salesforce objects. Uses WSDL files to define parameters for accessing data through the API.
Documentation
Documentation
https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/sforce_api_quickstart_intro.htm
Authentication
https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/sforce_api_calls_login.htm
GettingStarted
https://developer.salesforce.com/docs/atlas.en-us.api.meta/api/sforce_api_quickstart_steps.htm