Referral Variable

Referral Variable: You can append variables in the URL which can be accessed inside the survey.
Example: Let’s say you have the URL You can append the variables to URL in this way:$$Variable1:value1;Variable2:value2
Inside the survey you can access these appended values using {{ENV_EX_VARIABLE1}}. This will return value1. Similarly {{ENV_EX_VARIABLE2}} will return value2.

Please note that you have to append Variables after appending $$.