Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Aircraft Equipment Problem Less Severe
Flight Crew Returned To Departure Airport
Aircraft
I was Pilot Flying for a normal departure from ZZZ. Takeoff was normal; but just after the Pilot Monitoring called acceleration altitude we received the EICAS: BAGGAGE DOOR OPEN. We finished the climb flow; contacted ATC for delay vectors; and then I took over the radios as the Pilot Monitoring began the QRH. As we accomplished the QRH we noted the cabin altitude was climbing rapidly and determined we would return to ZZZ. We accomplished our remaining checklists and set up for an uneventful approach and landing. After we returned to the gate one of the ramp crew informed us he had seen that the baggage door 'didn't look right' and he had cycled the latch and closed the door again. We called Maintenance who found no defects. When Maintenance was finished; we continued our flight uneventfully. It may be beneficial to train ramp crews not to touch or interfere with a door until instructed in a return to gate or return to field scenario. After talking with Maintenance we both agreed it would have been much easier to determine the cause if Maintenance would have been able to see the door before it was cycled.
Air Carrier Captain flying EMB-XRJ aircraft reported Baggage Door Open inflight.