Log in to the Box Developers page and create your application.
Select 'Box Content' since the Box Content SDK for iOS uses the Content API.
In your App configuration page, find your 'client_id' and 'client_secret' under 'OAuth2 Parameters'. These values are needed for initializing the SDK in your app.
Find the 'redirect_uri' field, also in the 'OAuth2 Parameters' section. Make sure it is populated with the expected format: boxsdk-YOUR_CLIENT_ID_HERE://boxsdkoauth2redirect. This is needed for authentication to work in your app. The SDK expects this pattern. Make sure you replace the 'YOUR_CLIENT_ID_HERE' string with your client ID value from the 'client_id' field. The dash ('-') remains.