What should information source do when it receives a duplicate eligibility request on 270 transaction (segment TRN has the same trace number for both requests)?
Should infomation source process duplicate request anyway and respond accordingly? Can it reject it? and if yes, then how rejection should be coded in 271?
The information source must process the 270 request when it receives a duplicate eligibility request even when the TRN has the same trace number for both requests. There is no requirement in 005010X279A1 to populate TRN02 with a unique value.
Yes, the information source must process the duplicate request anyway and respond accordingly.
The information source cannot reject the transaction merely because it has received duplicate trace numbers.