Made a purchase with Lenovo online yesterday and received this discount code via email today. Not sure if it'll be of use, but hope it helps someone out. Have pasted the text of the email below. The coupon code appears to be fairly generic even though it says "exclusive".
Thank you for visiting Lenovo!
We appreciate your interest in our products and for shopping on our site. Please be aware that our offers are only available for a limited time. So come back today and take advantage of the free standard shipping on your order!
Plus use your exclusive eCoupon below and save 10% off Lenovo laptops, desktops and accessories.
Use eCoupon code at check out: APRWELC2017 (Expires May. 31, 2017)
Offer details: Subject to change without notice. **10% off cannot be used in conjunction with any other offer.