You can obtain the WSDL for the SOAP service here: https://www.dayforcehcm.com/DataSvc/DayforceService.svc?wsdl.
Note: Customers with client-specific URLs must replace the domain portion (www.dayforcehcm.com) of the URL above with the domain used to access their Dayforce application.
Use your development tool of choice and this WSDL to generate your client side proxy classes. The service was developed using Microsoft .NET technologies and is hosted within Microsoft IIS.
The WSDL will be updated as new features and functionality are added to the Dayforce web services. For this reason, you should design your solution in a way that makes it easy to upgrade your client generated proxy classes.
Note that while the WSDL will be updated as new versions of the application are released, it will continue to be compatible with previous versions of the application.