B2B Outbound 810 - Connection Reset Issue

Hi Experts,

My flow is as mentioned below -

ECC System(INVOIC.INVOIC02) --> SAP PO ---> Third Party Vendor(AS2 adapter)

Error is coming in AS2 adapter, details are mentioned below -

1)Message could not be forwarded to the JCA adapter. Reason: Message cannot be delivered: java.net.SocketException: Connection reset

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2) According to the logs its failing after the mapping getting executed successfully but I am not getting the payload after mapping.

3) Also, in the logs its showing IDOC_AAE connection, but according to my understanding it is coming in AS2 channel. Why is it showing IDoc_AAE?

Transmitting the message to endpoint <local> using connection IDoc_AAE_http://sap.com/xi/XI/System failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: javax.resource.ResourceException: Message cannot be delivered: java.net.SocketException: Connection reset

4) Channel logs -

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Please suggest.

Thanks,

Nidhi