Apex Interoperability

Besides being able to create custom Apex formulas, you can also reference Apex actions to be executed later. This is useful when the goal is not to retrieve data, but to perform some action. Think about this as having a reference to a function in Javascript, which you can then execute later.

Note that there is no need to register this class through a Custom Metadata Record in order to use this functionality.

Only top level classes without namespaces are currently supported.

This is how you can call Apex actions from Expression Component Buttons.

Any class that implements the expression.IExpressionFunction interface can be referenced in this way.

$Action.Apex.ClassName

To pass arguments to your Apex class, you can pass any number of expressions as arguments to the action:

$Action.Apex.ClassName(expression1, expression2, ...)