However, the effectiveness of email campaigns or social media posts relies on a long-term strategy. It depends on careful planning based on the analyzed statistics of previous campaigns, the study of community behaviors, and targeting established according to numerous parameters, including content and timing of the message. This strategy must be anticipated, thoughtfully designed, and finely structured to achieve its objectives. Each message, to be effective, must be crafted for a precisely targeted audience. This is why emergency communications intended to address low attendance are most often ineffective: they mainly consist of repeating a previously carefully targeted message, this time sent to an overly broad audience.