The first step to access those interfaces is to create a Janus account.
From the SESAME interface (https://sesame.cnrs.fr/password-reset/request?lang=en) :

• Tick CNRS Units staff (this concerns all PIMM members, regardless of their employer)
• Enter your email address firstname.lastname@ensam.eu: This address should have been added to the RESEDA CNRS base (which serves as a large administrative directory). If the Janus registration does not work, maybe your personnal email address has been added instead. Please contact Farida, Latifa, Claire or Christophe, in order to have them check that the right address has been entered.
• Tick I'm not a robot
• Click on Send mail

Once your Janus account is created, you should be able to access the following platforms:

GESLAB: Financial management of the lab
SIGAPPEC: Research contracts management
ETAMINE: Go on a mission

Contacts: Claire and Christophe

Applications are sometimes turned off for maintenance, you can check that here.