Link the CSV variable for form based authentication
  1. Select the Design section.
  2. Select the HTTP request in which the login takes place: In the Virtual Users tab, choose the Virtual User, HTML page and HTTP request where the actual login and Form based authentication takes place.

    For example:

  3. Link the account variable to the Login configuration element: The HTTP request, in the example, defines several request parameters. In this case, the two of interest are the username and password request parameters. In your case, these request parameters are probably named differently.
  4. Link the account variable to the password configuration element: This involves the same steps as linking to the username request parameter element: Selecting the Value column and, for the password request parameter, changing the value to the ${account.col_1} expression.