How to create connected Apps in salesforce :
- Log in to Salesforce as an administrator.
- In the drop-down list of the account (in the upper-right corner), select Setup.
- In the left-hand pane, go to App Setup > Create >Apps.
- In the Connected Apps page, click the New button.
- On the New Connected App page, fill the following required fields under Basic Information: (Check Figure 1)