True or False: SOAP API calls are asynchronous.

The statement regarding SOAP API calls being asynchronous is false. SOAP (Simple Object Access Protocol) API calls are primarily synchronous in nature. This means that when a client makes a request to the SOAP API, it waits for the response from the server before continuing any further processing. The client initiates the request, and the server responds directly, which characterizes synchronous communication.

While there may be other mechanisms or protocols in different contexts that support asynchronous processing, in the context of Salesforce's SOAP API, the default behavior is synchronous. This allows for a more straightforward request-response pattern, which many systems are designed around.

Options suggesting that the nature of SOAP API could be asynchronous or depend on configuration do not align with its fundamental operation, as SOAP API interactions consistently follow the synchronous model.