I followed the steps to delete the old "Contact Name," "Email," and "Mobile" row, and they delete fine on my end. But when I try to create the new "Contact Name," I get an error message (see the first photo).
I press "View in salesforce classic" and it just sends me to the home page. After that, I go to my apps, marketing, and then meetings. When I check the first meeting date, it looks like this (see the second photo).
I don’t think I’m doing anything wrong, but I might be missing something. Could you please help me figure it out?
Yeah, so that's because you didn't set the browser settings given at the top of the Lab 1a cover sheet where it says "If you don't make these settings, Salesforce may not work...". You need to allow 3rd party cookies for cross-site tracking for that function so give that a try and let me know, ok?