Elias remembered the email from the reseller. He opened his inbox and found the purchase confirmation. It contained a long string of characters labeled "Serial Number" (often referred to as the License Key) and a shorter string labeled "Authorization Code."
Confused by the terminology, Elias turned to his old mentor, Sarah, a veteran in architectural design.
"Sarah," he asked over the phone, "I have these numbers, but I'm not sure how they actually work. What is the difference between the License Key and the Authorization Number?" Sketchup 2020 License Key And Authorization Number
Sarah laughed warmly. "Think of it like a high-security building, Elias. The License Key (or Serial Number) is like the building's address. It tells the software what you own. It verifies that you have purchased a specific version—SketchUp Pro 2020."
"And the Authorization Number?" Elias asked. Elias remembered the email from the reseller
"That is the key card that gets you through the door," Sarah explained. "It validates that the License Key belongs to you. In older versions like 2020, these two numbers worked in tandem to unlock the software permanently on that specific machine."
SketchUp 2020 represents a pivot point in Trimble's history where the company fully deprecated the classic "License Key and Authorization Number" workflow for most users. "Sarah," he asked over the phone, "I have
For hobbyists and makers, SketchUp Go is a web + iPad version at a fraction of the Pro cost. It offers 95% of the modeling capabilities of desktop Pro.
The authorization process for SketchUp 2020 follows a Challenge-Response protocol, though the user interaction has changed.
Prior to 2020, if a user lost internet connectivity, they could use the Authorization Number to manually activate the software. With the 2020 update and the move to cloud-based identity management, the reliance on the static Authorization Number diminished. The software now "phones home" regularly to verify subscription status, rendering the static Authorization Number obsolete for the majority of the user base.
Trimble offers a completely free, browser-based version of SketchUp. While it lacks some Pro features (like advanced import/export or Layout), it includes core modeling tools and 10GB of cloud storage. No license key required.