After-Sales Service refers to the support and services a company provides to customers after they've made a purchase. This can include things like onboarding, product training, troubleshooting, warranty support, regular check-ins, and even upsell or renewal conversations - basically anything that helps the customer get continued value from what they bought.

Strong after-sales service isn’t just about fixing problems; it’s about building long-term relationships, increasing customer satisfaction, and driving retention. In today’s competitive market, how you treat customers after the deal closes can be just as important as the sale itself.