A variable is a place where any subscriber data is stored. Variables can store the information received from the subscriber in order to use them later in scripts.
Variables have a name and type (Text, Number, Image, Yes/No, JSON).
Variable names must contain Latin letters or an underscore character, for example: name test_name
The values of the variables are different for each subscriber. It is convenient to think of variables as columns in an Excel table. This way, when you add variables, you add fields that will be filled in for each subscriber: