Mobile push ads, while effective, have several demerits in affiliate marketing. One major drawback is user fatigue; frequent or irrelevant notifications can lead to annoyance, increased opt-outs, or app uninstalls. Limited screen space on mobile devices restricts message length and creative flexibility, making it harder to convey complex offers. Privacy concerns and strict opt-in requirements, especially under regulations like GDPR, may limit reach. Additionally, ad blockers and do-not-disturb settings can prevent delivery, reducing campaign effectiveness. Poor targeting or generic messaging often results in low engagement and click-through rates. Finally, technical glitches or delays in delivery can impact real-time promotions. These challenges highlight the need for strategic planning and quality content to make mobile push ads effective in affiliate marketing.