Solution : https://service.sap.com/sap/support/notes/1525259 (SAP Service marketplace login required)
Key words :
relevant support package, forward error handling, idoc outbound adapter, created acknowledgment message, program error, request message, adapter status, proxy server, sender requests, longer updated
Related Notes :
| 1651750 | XI runtime: Acknowledgment with status 22 cannot be deleted |
| 1531912 | SAP EhP1 for XI on Netweaver 7.00 SP08 |