PI 7.1 to ABAP WAS 6.20 using ABAP proxies

Hi All,

During processing of messages from PI7.1 to R/3 (ABAP WAS 6.20) using ABAP proxies we receive the following error message in R/3:

PROTOCOL.MSGID_EXISTING_INBOUND: Message already exists in called system

The message is in status: message already processed.

Could somoene please assist us with this?

Kind Regards,

De Wet