To create a carpool, you must first enter a trip as a driver or passenger. This will show you when and where you want to go. 

You can enter this under "My rides". 

Then you can see your matches on the "Find a carpool" tab. 

If you like a match, you can request the person by going to "Request details". You can select any day of the week. Then a message will be sent to the partner by e-mail and on the platform under "Requests".

If the person confirms this request, the contact details will be sent by email and on the platform and you can contact him.

Under "My carpools" you can now see the carpools you have set up and check their contact details.