Milestone MS4 describes the social media templates as well as the ready-to-use social media messages that promote the key information of the project. The purpose of this milestone is to empower partners to participate in building up the project’s online presence on various social media platforms. Under the current circumstances with the COVID-19 pandemic, the initial use of leaflets/bookmarks was changed to social media messages to better match the ongoing demand for online communication. The social media templates and key messages will be used frequently during the project online and in presentations and can be adjusted to new information from the project as outcomes become available.