Global Vairables

For all we knew all this while was that global variables were not possible with Navision. Navision has always supported module level variables i.e. a variable accessible throughout a module like a form, report... what we are talking about here is a variable which is accessible across objects.

Well there is only one way to achieve this and it is using the Single Instance property of a Codeunit. Any codeunit which is set as single instance is static in nature and is initialized only once.