First of all User Defined Functions as specified within the Formulas properties of your app. Just like Named Formulas. In the above example we can see that the structure is fairly similar.

Recently I already mentioned Named Formulas and User Defined Functions in my posts. Today I'm looking at User Defined Types.

Output of the function, for example control outputs, constants, local variables, and global variables. The outputs can also be email messages, SMS messages, served-up web pages, and OPC UA messages ...