Since heading tags typically make text contained in them larger than normal text on the page, this is a visual cue to users that this text is important and could help them understand something about the type of content underneath the heading text. Multiple heading sizes used in order create a hierarchical structure for your content, making it easier for users to navigate through your document.
A Cohesive Marketing Technology Stack: No one software tool can save the day. Marketing is not about the creative aspect alone anymore. Marketing technology infrastructure needs to be designed and integrated correctly. One social media tool alone will not save the day, nor will one CRM tool be the solution to a challenge anymore. Consider your full stack and how it can work together.