What is the greatest risk associated with replicating successful campaigns across different product lines or services without modification?

The greatest risk associated with replicating successful campaigns across different product lines or services without modification is a significant decrease in ad relevance and conversion rates due to mismatched user intent, product features, and value propositions. Each product line or service typically has its own unique target audience, search patterns, and competitive landscape. A campaign that is highly effective for one product line might not be relevant or compelling for another if the ad copy, keywords, and landing pages are not tailored to the specific characteristics of that product. For example, a successful campaign for high-end luxury watches might not work for budget-friendly digital watches because the target audience, key features, and pricing are vastly different. Users searching for budget-friendly options will likely be turned off by ads promoting luxury features and high prices. Similarly, the landing page experience needs to be tailored to the specific product or service. A landing page that effectively showcases the features of a luxury watch might not be suitable for promoting a digital watch with different features and benefits. Failing to modify the campaign to reflect these differences will result in lower click-through rates, higher bounce rates, and a reduced conversion rate, ultimately leading to a lower return on investment.