Variables
Email variable is a defined part of an email that you can adjust and test, such as the copy, send time, subject line, etc. It can be almost any part of the campaign. Variables are also used to add personalizations so you can include recipient-specific information like customer names, order numbers, account manager details, custom URLs, and more.
You can choose from the list of standard service variables or create custom variables of your own.
IMPORTANT: All variables should be in “lowerCamelCase” format. Only Latin letters allowed. No underlines, special symbols, etc.
lowerCamelCase (part of CamelCase) is a naming convention in which a name is formed of multiple words that are joined together as a single word with the first letter of each of the multiple words (except the first one) capitalized within the new word that forms the name.