Working on prod issue for one of our customer using BizTalk 2006 R2 RFID, we started running into a strange issue where we are reading the vehicle and driver information. We started seeing all of our drivers tags are getting rejected after the 1st successfully read but all the Vehicle tag get processed without any issues. Just for your info each driver keep driving new vehicle each time so that’s clue for you. So on further investigation we found duplicate elimination event works fine for Vehicle ......