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3205132 - HTTP/2 protocol version not supported in SOAP Receiver Adapter


Trying to connect to an receiver endpoint using the SOAP receiver adapter and you see the following symptoms.

  1. xpi inspector trace shows error 
    Communication over HTTPS/PROXY. Handshake error; Additional info
    [EXCEPTION] Peer sent alert: Alert Fatal: internal error
  2. running a curl command against the endpoint curl -v <url> --proxy <hostnam>:<port> would give an output of 
    ALPN, server accepted to use h2
    Using HTTP2, server supports multi-use
    Connection state changed (HTTP/2 confirmed)
  3. Opening the endpoint in a browser and checking the Chrome Dev Tool ( F12 ) → Network → Protocol we can see the protocol used by the website is h2



  • SAP Netweaver
  • SAP Process Integration


SAP NetWeaver 7.5 ; SAP Process Integration all versions


HTTP/2, h2, HTTP version, SOAP ,Process Integration, PI, Process Orchestration, PO, NetWeaver, XI, AEX , KBA , BC-XI-CON-SOP , SOAP Adapter , Problem

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