Passing Parameters to the URL on a button

Marketing & Content Hub Email Marketing Tool
5

We’re getting close. I guess what I’m asking is what is the syntax of the property?

In the example we have {{contact.email}}. But what if I create a custom property like “my custom property” with spaces. What is the syntax of the token:

1. {{contact.my custom property}}

2. {{contact.mycustomproperty}}

3. {{contact.my_custom_property}}

4. ??

Thanks!!