Researchers can use this template for the Career Development Plan which is not mandatory: https://www.horizon-europe.gouv.fr/sites/default/files/2021-07/h2020---career-development-plan-3914.doc
There is also a Euraxess Career Handbook with an MSCA Career Development Plan Template as Annex 1 dating back to 2016: https://euraxess.ec.europa.eu/sites/default/files/euraxess_career_handbook.pdf
