Solution : https://service.sap.com/sap/support/notes/174306 (SAP Service marketplace login required)
Key words :
<transaction>leave programsubmit <report> interactive entries, rfc server initiates screen outputs, remove transaction contextthis error message, error message 'connection closed' occurs, rfc-capable function module, abap/4 runtime error dynpro_send_in_background_task, open rfc connection, symptom exception system_failure, remote function call, current roll area
Related Notes :
| 49730 | Error message: Screen output without connection to user |
| 46823 | ThWrCommEntry: comm_adm overflow |