Originally Posted by olivedel

From Paris Aéroport website:

You are arriving on an International flight:
→ Follow the arrows to gates 20 to 28
If you do not yet have your second boarding pass, go to the company connecting flights desk of your next flight
→ Take the green shuttle bus (Navette verte) to Terminal 2A
Frequency: from 5:00 am to 00:00 pm
→ From Terminal 2A, take the blue shuttle bus (Navette bleue) to Terminal 2E and get off at gate L
Frequency: from 5 am to 11:45 pm
→ Follow signs for «Terminal 2F»

You are arriving on a flight from the Schengen area of the European Union:
→ Follow signs for «Baggage-Exit»
Your flight connection will require that you pass through French territory: please ensure that you comply with French administrative requirements (visa, etc.).
→ Go through the Police border check and Customs
→ Follow signs for «CDGVAL»
→ Take the CDGVAL and get off at the stop for «Terminal 2»
Free service. Night stop 1:00 am to 4:00 am, shuttle service available outside stations. Information dedicated at the airport.
→ Follow signs for «Terminal 2F»