IntegrationBeginnersoapenterprise-wsdl
What is SOAP API and when is it still used?
Real World Scenario
A legacy billing system only supports SOAP. You explain why Salesforce still offers it.
Expected Answer
• SOAP is XML-based web services with WSDL contract definitions
• Salesforce Enterprise WSDL is strongly typed to your org schema
• Common in older enterprise ERP and middleware that never migrated to REST
• Partner WSDL exists for multi-org ISV patterns
• New integrations prefer REST or Bulk unless SOAP is mandatory
Follow-Up Questions & Answers
Click to expand — each follow-up includes a direct, interview-ready answer
Often heavier payloads with XML parsing overhead. For high volume, Bulk or REST composite may perform better.
Architect Perspective
Acknowledge SOAP legacy without recommending it for new builds—balanced junior take.