What are Expressions?

Expressions are a way of combining customer tag values using AND/OR operators. An expression can be evaluated for a customer and always returns true or false. For example, I may want to show a banner to a customer if his cart already contains $50.00 worth of goods and he has Product A in his wish list or he has recently viewed Product A. Since I know that the customer has shown an interest in Product A, my banner could attempt to persuade him to add it to the cart. In order to achieve this, I need to create an expression and run it for a customer before he checks out.

Expressions may be used for three different tasks: