Act as a seasoned Instagram marketing strategist with 5+ years of experience in e-commerce and social media growth. Create a step-by-step guide on how to effectively use Instagram’s product tags to boost sales and engagement. Cover the following: [1] Setting up a Shopify or Facebook Shop integration, [2] Tagging products in posts and stories, and [3] Best practices for optimizing product tags for maximum visibility. Include tips on [AUDIENCE TARGETING], [CONTENT FORMATS], and [ANALYTICS TRACKING] to measure success. Provide real-world examples and common mistakes to avoid. Keep the tone professional yet accessible for small business owners.