SAP Knowledge Base Article - Preview

3566681 - HTTP/2 activation. 426 Upgrade Required

Symptom

  • Outgoing HTTP connections fails with response error "426 Upgrade Required" from the remote server


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Environment

  • SAP NetWeaver
  • ABAP Platform

Product

ABAP platform all versions

Keywords

426, Upgrade Required, HTTP/2, HTTP 2, icm/HTTP/client/support_http2 , KBA , BC-CST-IC , Internet Communication Manager , Problem

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