There is no need to log on to your solidarity platform to confirm your participation in an initiative.
At the end of the initiative, you will receive an email asking you to either :
confirm your participation using 2 buttons
evaluate the initiative (if your participation is validated by default in your company settings)
Once you click on one of the two button, you will be redirected to a single page for confirmation or evaluation of the initiative.
From this page, you will have access to a summary of the initiative, and you will be able to go to your company's home page to connect to the platform if you wish.