I have a survey with a signup form with 2 questions:
- textfield for email
- dropdown selection list with options like 'student', 'teacher', etc

After completing the survey the user should receive an automatic email (this works already) but the content should depend on the signup type, as teachers have to pay less than students.

I have been trying something like this in the email template field:

But this does not work. What is the correct way of using such logic expressions in the email?

Your code is completely wrong, so I assume this is the problem here. I am assuming that "signup_type" and A1, A2, etc. are correct, then you should try this code:
It is always like this {if(condition that triggers something, what happens when condition is met, what happens when condition is not met)}

Or, assuming that there is only signup type A1 and A2 you could write this shorter:

I would always try this code within the survey first (e.g. in a text display question or an equation question) and see if it works there (easier to make sure the code works, because you do not need to send an email each time). Once the code works, then you can try it in the email template.

Actually, I probably would use a hidden equation question for this and in the email Template I would probably just pipe the content of this Equation question into the email. This way it is even saved in the database.

And in addition to holch's explanation:

You find all this here:
www.limesurvey.org/manual/Expression_Man...mplemented_functions
and here
www.limesurvey.org/manual/Expression_Manager_how-tos

Joffm

Hi guys. I am used to the if-functions syntax and using it in question texts etc. on a regular basis. However, right now I am trying to implement it in the email invitation template and it seems to just swallow up the curly brackets. See my attempts below.

I am using LS version 2.73.0+171219 for this.

And the screenshot shows it's validating properly clicking on the "Validate expressions" button.

Guess I need some captain obvious here.

Edit: email I am receiving looks like this

Hi there.

Turns out that - within EMail-templates - instead of "TOKEN:ATTRIBUTE_1" you need to write "ATTRIBUTE_1" only. It works fine now for me.

Cheers

Yes, this is one of these little "inconsistencies" that can drive you nuts. I don't understand why this is not consistent, but it is the way it is.

If i don't make error in 3.X : you can use TOKEN:ATTRIBUTE_1 or ATTRIBUTE_1

If you can not in 4.X : it's a (major) issue