Assign the License

1.In the Microsoft 365 Admin Center, Go to Active Users

*Click on the user that you want to assign the license

2.Click on License and apps

3.Click on View Products and click on Office 365 E3

4.Assign the license by sliding the button to the right

5.Scroll down and cick on Save button.The changes has been saved.Now, you can see a license has been deducted from the Total.

6.Result

* Now you will be able to see the application in the app launcher