As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: ECAM WARNING: SMOKE LAVATORY SMOKE. FL320. ECAM REMAINED FOR LESS THAN 30 SECONDS. CABIN CREW INVESTIGATED MID-LAVATORY. PASSENGER CLAIMS NO SMOKING/VAPING. CABIN CREW DETECTED NO CIGARETTE/VAP SMELL OR EVIDENCE. CREW MONITORING FOR THE REMAINDER OF THE FLIGHT. MAINTENANCE ACCOMPLISHED A BITE TEST PER TSM 26-17-00 WITH NO FAULTS FOUND. MID LAV SMOKE DETECTOR VISUALLY INSPECTED. NO DAMAGE FOUND. OK FOR SERVICE.