What are two considerations to make when performing SOAP callouts from within Apex?

When performing SOAP callouts from within Apex, one key consideration is that WSDL2Apex can generate stub code that allows developers to easily interact with SOAP web services. This tool takes a WSDL (Web Services Description Language) document and produces a set of Apex classes that serve as an intermediary between the SOAP service and your Apex code. This automatic generation of code simplifies the process of making SOAP calls, as it handles much of the boilerplate code that would otherwise have to be manually written.

Utilizing WSDL2Apex is beneficial because it ensures that the generated classes are consistent with the service definitions provided in the WSDL, thereby reducing the potential for errors when invoking methods or accessing service endpoints. This approach also facilitates easier updates and maintenance of the integration code if the service definition changes, enhancing the overall reliability and manageability of the integration solution.

Though other considerations regarding SOAP callouts, such as API limits and the potential impact of DML operations, are important to understand within the context of integrating with external systems, the capability of WSDL2Apex to generate stub code is a distinct advantage that simplifies SOAP integration in Apex.