Fusion Cloud web services: Deprecated does not mean obsolete

During a Fusion Cloud implementation we had the task of creating the conversion to Enterprise Contracts. To load the conversion data we created a script that utilises Fusion Cloud web services. During the implementation also a release upgrade was planned from Fusion Cloud R10 to R11. This release brought and unexpected occurrence with it, being the web service we used to invoke in our conversion script being deprecated and resulting in the following response:

Integration with Oracle Fusion Applications Enterprise Contracts using web services

During our move at Profource from Oracle E-Business Suite R12 and Oracle Fusion R7 on-premise to Oracle Fusion ERP Cloud R10, we had the challenge to migrate projects and create Enterprise Contracts.
Although Oracle Fusion provides a way to create contracts using File Import Activities, the current functionality and scope of creating contracts was not sufficient for our line of business.