Customers of salesforce.com subscribe to a specific edition of the service. These editions exist across the various core applications (marketed as clouds) as well as the Salesforce1 Platform offering. The lowest priced edition always has the most restrictions. As you move up in price, these restrictions are reduced, but still exist. As a result of these restrictions, when you build an application on the Salesforce1 Platform, it's always a best practice to have as small of a footprint as possible so that any customer, regardless of the edition, can install your app.

Subscribers of the Salesforce core applications can install and execute code that references any of the objects included in those applications, such as opportunities, assets, or cases. Subscribers to just the Salesforce1 Platform don't have access to those objects and therefore can't install or execute code that references them. If you are building an application for the AppExchange app store, it's critical to determine...