Return on Investment (ROI) is a financial metric that measures the profitability of an investment by comparing the net gain or loss to the initial cost, expressed as a percentage. It helps evaluate how efficiently an investment generates returns relative to its cost and allows comparison across different investments.
TikTok Shop Ends External USPS Labels In US From January 2026
TikTok Shop will stop accepting USPS shipping labels bought outside its platform from January 2026. Sellers using ShipStation, Shopify or similar tools will need to switch to TikTok Shipping or pick a different carrier.




