What is C/AL? C/AL ( C lient A pplication L anguage) is the programming language using in the C/SIDE (Client/Server Integrated Developemnt Environment) in the Microsoft Dynamics NAV previously Navision. By the help of this language we have following type of uses in Microsoft Dynamics NAV environment. Form objects and Report objects are handling the data presentation Data storage and organization is handled with help of table objects and built in Database Management System(DBMS) Data acquisition is handled with the help of Form and Dataport Objects