If you have the email address associated with the purchase, you can use the Quest License Retrieval tool to have your key resent. Activation Process for Version 11.6
If you have already installed Toad for Oracle 11.6, you can find your current licensing information within the application or in local system files:
To ensure smooth operation and minimize disruptions, follow these best practices for managing your Toad for Oracle 12.6 license keys:
Enter the (long alphanumeric string) and Site Message exactly as they appear in your fulfillment email.