Like any good marketing campaign, you need to create or solve a problem. You also need to show why your organization or business is the best at giving the searcher what they are looking for. Answer these questions about your campaign: What makes your business unique, and different than your competitors? What are your key unique selling points (USP)? What are you offering right now to get your customer to click your ad? For example: 20% OFF, Limited Time Sale, etc.
List out a few demographics of your customers such as: Are they a local market? Are they businesses, individuals or families? Would they be searching for you on mobile, or from a laptop? What level of knowledge do they have about your products or services? What do they want right now, when they are searching for you? Think about things like interests, age, shopping habits, publications followed, gender, education level, etc. As much information that you can provide is helpful.