Even with a valid serial number and authorization code, using the 2014 version in the current year presents hurdles:

A web-based version that handles basic 3D modeling.

Tip: Manually typing the code is often more reliable than copying and pasting, as some characters like "dashes" can be misinterpreted by the license field. Add License to complete the activation. SketchUp Community Important Considerations Activation Limits

The current Pro version offers a Free Trial and uses a Trimble ID (email login) instead of manual serial numbers, making it much easier to manage across devices.