First make sure that you are in Salesforce Classic.
If you are at Unit 2 - Create the Application, create a Custom app named "Conference". Go to Setup > Build > Create > Apps, in the Apps section, click New and Check Custom app and click Next.
If you are at Unit 9 - Use the Salesforce Platform APIs, create a Connected app named "MyConference". Go to Setup > Build > Create > Apps, in the Connected Apps section, click New and define the Connected App.
First make sure that you are in Salesforce Classic.
If you are at Unit 2 - Create the Application, create a Custom app named "Conference".
Go to Setup > Build > Create > Apps, in the Apps section, click New and Check Custom app and click Next.
If you are at Unit 9 - Use the Salesforce Platform APIs, create a Connected app named "MyConference".
Go to Setup > Build > Create > Apps, in the Connected Apps section, click New and define the Connected App.