How do I configure an External App for a course using XML?
One way to configure an app for a course is by using XML.
To learn more about configuring external apps, visit the Edu App Center.
View App Configurations
To configure an app, click the View App Configurations button.
Add New App
Click the Add App button.
Set Configuration Type
Select the Configuration Type drop-down menu and set the configuration type to Paste XML.
Add App Details
Enter the name of the App in the name field . Enter the consumer key in the consumer key field  and the shared secret in the shared secret field . This key and shared secret will be provided by the vendor or (if using the Edu App Center) provided by the website.
Note: There are some Apps that do not require a consumer key or shared secret, so pay attention to the configuration directions.
Enter Configuration XML
Copy the XML code in the paste XML here field . Click the Submit button to link the App .
View the linked App. Click the Edit icon to edit the app. Click the Trash icon to delete the app.