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SOAP Web Services List Types
If you use the Web references package to call SOAP-based web services, we recommend that you migrate to the Webreferences2 package. To help make this migration easier, a new property enables the Web references2 package to generate list types as arrays instead of as lists. Arrays are the default list type for the Web references package. Lists are the default list type for the Webreferences2 package.
How: To let the Webreferences2 package know you want to generate arrays instead of lists,
set collectionType=indexed in the <wsdl_name>.wsdl.properties properties file where
<wsdl_name> is the name of the corresponding
WSDL file. For more information, see SOAP Web Services.
Where: This change is recommended for all Salesforce B2C Commerce implementations as of the 21.1 release.

