Message Flows
Intermediate
Isolate sequence, timing, and retry defects across CPO and eMSP boundaries. Trace message flows to find where production behavior diverges. Charging Session · EV Simulator · EV Roaming Tester
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Meet the OCPI Team
Starting a Charging Session
Real-time Updates During Charging
Finishing the Charging Session
Build Your Own Flow
Meet the OCPI Team
Who talks to whom in the EV charging world?
What You'll Learn:
- The main players in OCPI communication
- Who owns what in the EV charging ecosystem
- How these entities work together
The Players in This Lesson:
EV Driver
DRIVERCharging Station Operator
CPOE-Mobility Service Provider
EMSPCharging Station
CHARGERKey Takeaways:
CPO manages physical charging stations
EMSP handles customer service and billing
Drivers interact with both through apps and cards
OCPI is how CPO and EMSP talk to each other