To activate your Lowe's account on Lowes.com/activate, follow these steps:
Go to Lowes.com and click on the "My Account" tab.
If you already have a Lowe's account, sign in. If you don't have an account, click on the "Create Account" button.
Once you are signed in, click on the "Activate Your Account" link.
Enter your Lowe's account number and the activation code that is printed on the back of your Lowe's Advantage Card.
Click on the "Activate" button.