Hi,
is it possible to add a field to the registration where the users are required to enter in a code, and based off of that code they are added to different user groups, and if the code doesn't belong to a user group, they are not able to register? I have figured out the first part of my question by creating parameters and selecting a usergroup that users are added to if they type in a specific code that I provide, but the second part I can't figure out. I don't want them to be able to register if they don't enter in the specific codes.
Thank you