¿Cuáles de las siguientes son variables que pueden afectar el desempeño de la campaña?

All of the listed options can significantly impact campaign performance. Out-of-stock issues directly prevent purchases, leading to wasted ad spend and poor customer experience. Prime Day, while a sales opportunity, also brings increased competition and potentially higher CPCs, requiring strategic adjustments to maintain efficiency. Negative customer reviews can erode trust and deter potential buyers, regardless of ad visibility. Therefore, a comprehensive campaign strategy must consider and adapt to all these variables.