The expedition leader will be invited by the scientific coordination of AWI. You will receive the invitation mail. If you have never been a participant in EIS before, you will get a registration link for the self-service-process to create your account in EIS.
When you are invite as the expedition leader, your next step is to invite
a) yourself as a participant
b) your workinggroup leaders of the projects of your expedition
c) potentially add administrative substitute(s) to your expedition leadership to support you in organizing the expedition.
Please be aware: as the expedition leader you are responsible for your staff, even if you delegate parts of this responsibility to your working group leaders. That implies: you will be informed, when participant data in EIS is still missing!