In this guide we'll focus on the nuances of initiating paid advertising for early-stage B2B startups. We'll look at setting an adequate budget and the need for cross-functional support encompassing design, content, engineering, security, and legal considerations. We'll explore the essential tools, including web analytics, UTM parameters, platform integrations, and approaches like remarketing and lookalike audiences. For goal setting, we'll touch on the importance of experimentation and using industry benchmarks as guiding metrics. We'll also touch on understanding and calculating Return on Ad Spend (ROAS) as a metric for scaling the advertising program