How does the SOAP API work in Marketing Cloud? Explain RetrieveRequest and filtering.
Suggested answer
The SOAP API uses the Enterprise WSDL at https://YOUR_SUBDOMAIN.soap.marketingcloudapis.com/etframework.wsdl. A RetrieveRequest message specifies:
ObjectType: The API object name (e.g., DataExtension, Subscriber, Send).
Properties: Array of field names to return.
Filter: A SimpleFilterPart with Property, SimpleOperator (equals, notEquals, isNotNull, greaterThan, etc.), and Value. Multiple conditions use ComplexFilterPart with LogicalOperator AND/OR.
The response uses MoreDataAvailable and RequestID for pagination — re-submit with ContinueRequest until MoreDataAvailable = false. WSProxy in SSJS wraps all this automatically.
Practice content for interview preparation; not an official vendor answer. Verify details against current product documentation.
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