Error when Idoc is sent to SAP via HTTP

Hi,

When Idoc is sent to SAP system via HTTP, I am getting error

<b>"IDoc '0000000000000000' has already been received, therefore reception is refused"</b>

I tried to find the details of this error and it is SAP Error Code: EA-097

(Message class EA).

With this details, I tried to check further details with where-use-list and it shows because table SRRELROLES already has entry (include LEDINF10)

FYI I am getting above error for subsequent idocs and was able to create only ONE IDoc successfully in SAP system.

Can anybody tell me what is the cause of the error EA-097 so that can create the Subsequent Idocs successfully.

Thanks & regards,

Yogita