Giving notice of a warranty claim under a Share Purchase Agreement ( SPA ) can be a delicate issue. Getting it wrong can mean the difference between a party being contractually within time to bring a valid warranty claim, and not. In Drax Smart Generation Holdco Ltd v Scottish Power Retail Holdings EWCA Civ 477, the buyer, Drax, acquired shares in a company from the seller, Scottish Power. As part of the SPA, the seller warranted that the benefit of an option agreement would be assigned to the buyer. Later and pursuant to the SPA, the buyer gave notice to the seller that it intended to bring a warranty claim under the SPA for the seller's alleged failure to assign the option agreement, as well as a claim under an indemnity given by the seller.