If you're using the Classic builder, you can find that article here.
When typeforms are more relevant to your audience, you’ll achieve higher engagement and completion rates. You can use Logic to create branching typeforms that head down different paths, depending on people’s answers. It’s a neat way of segmenting your audience and means they’ll only see questions relevant to them. This saves time, and keeps them interested!
Simple Logic
Here’s a simple example of a ‘single selection’ typeform, where people see a different set of questions depending on whether they choose ‘Dog’ or ‘Cat’:

Single-branching like this causes a respondent to travel down a single path depending on their choice.
All you need to do is define Simple Logic with Question branching that sends them in the right direction:

You can read more about single-branching with Simple Logic in this article.
But what if you want people to make multiple choices, and see questions relating to those? Then you need to set up a multi-branching typeform.
Multi-branching Logic
Let’s look at an example. The typeform below starts with a Multiple Choice question, and people can choose as many options as they like. Our respondents will only see follow-up questions relevant to their choices. See for yourself:
So if someone picks The New Yorker, they’ll only see questions relating to that. But also, if they pick The New Yorker and Time, they’ll see questions relating to both. Not bad! Let’s find out how to use Logic to do this…
For an overview of the typeform, here’s the Logic and structure of the typeform:

1. To get started, add a Multiple Choice or Picture Choice question. We’re using the former:
Be sure to open question settings, and activate Multiple selection.

2. Add the 4 follow-up questions based on the 4 possible answers. The 4 follow-up questions in our example are these Rating questions:

Next we’re going to set up Logic for these questions!
3. Go to the Logic panel, select Advanced then Branching and calculations. Add the following Logic to the Multiple Choice question “Which news magazines do you like to read?”:

4. We want to hide irrelevant follow up questions from respondents. To do this, we’ll add the same set of Logic we added to the Multiple Choice question in step #3 to each follow-up question – but excluding any Logic covering the jumps to the current and previous questions. They cascade, with fewer jumps on each subsequent block, as you’ll see:

Warning! Add Logic in this order, so no follow-up answers will be skipped. Because of how Logic behaves, the first condition that’s met will trigger the jump and prevent other scenarios.
This is the Logic added to follow-up question #1 ‘How would you rate The New Yorker?’:

This is the Logic added to the first follow-up question #2 ‘How would you rate Time?’:

This is the Logic added to the first follow-up question #3 ‘How would you rate Fortune?’:

For #4 ‘How would you rate The Economist?’, we don’t need to add any Logic:


Tips! You can add a set of follow-up questions for each possible answer choice. Organize them in a Question Group and add Logic to the last question of each batch.