IC85199: AS2: ON BACKEND ERROR, RE-TRANSMISSION OF TRANSACTION RESULTS IN DUPLICATE ERROR, LEADING TO LOSS OF TRANSACTION

APAR status

• Closed as fixed if next.

Error description

• Transactions with the same message-id will be rejected by
  DataPower duplicate elimination mechanism, even though the
  original transaction may have failed.
  

Local fix

• Two most likely workarounds:
  1: Configure the back Multi-Protocol Gateway to do the retries.
  or:
  2:   The front Multi-Protocol Gateway  could randomize the
  message identifier.
  

Problem summary

• Affected are B2B Customers who will receive an AS2 resend
  message with a duplicated message-id from external partner.
  B2B Gateway rejects messages with duplicated message-ids, even
  though the previous transaction failed. This behavior prevents
  an external partner from resending a message with the same
  message-id.
  

Problem conclusion

• This change will allow B2B Inbound Gatetway to process AS2
  messages with duplicate message-id, if the associated previous
  transaction failed.
  
  The fix will be available in a future major release.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels

• R500 PSY

     UP