This study employs a secondary data analysis approach to examine the impact of the COVID-19 pandemic on social media marketing, digital platform engagement, and online shopping trends from 2019 to 2024. By synthesizing data from credible sources, the research explores how brands and consumers adapted to the rapidly evolving digital landscape during and after the global health crisis. Results reveal that social media marketing has become a strategic business imperative, characterized by increased influencer partnerships, the proliferation of short-form video content, and enhanced real-time customer interactions. The pandemic catalyzed a significant rise in global social media adoption, marked by growth in user numbers and average daily usage. Parallelly, e-commerce experienced accelerated expansion, driven by shifts in consumer behavior favoring digital convenience and health safety. Major platforms such as Facebook, WhatsApp, Instagram, and TikTok emerged as leaders, with TikTok and Instagram demonstrating the most pronounced growth due to their engaging, visual content formats. The findings underscore that the COVID-19 pandemic has expedited digital transformation, fundamentally reshaping consumer expectations and marketing strategies in the post-pandemic digital economy.

Keywords: Post-pandemic economy, Social media marketing, Digital platform usage, E-commerce growth