Hi @Geneviève Trépanier we already have an app to import tasks from a CSV or from Trello. Check out https://help.workast.com/hc/en-us/articles/360018744134-How-to-import-tasks-from-a-CSV-file and https://help.workast.com/hc/en-us/articles/360018675634-How-to-import-tasks-from-Trello