1. Increased errors: The more complicated a process, the higher the likelihood of mistakes. 2. Low engagement: Overly complex emails can confuse or frustrate recipients, leading to lower engagement rates. 3. Resource drain: Complexity often requires more time and effort from your team, diverting resources from other important tasks. 4. Inefficiency: Complicated processes can slow down your campaign execution, making it difficult to respond quickly to market changes or customer feedback.