To integrate external applications with Salesforce via SOAP API, you must first obtain the Web Services Description Language (WSDL) file specific to your organization. This XML-based document serves as the blueprint for your development environment, defining the available API calls, objects, and fields. Choosing the Right WSDL Type
Salesforce offers two primary WSDL versions for data integration, and choosing the correct one is critical for long-term maintenance. Download Developer WSDL Files (WSDL-Based APIs) download wsdl salesforce