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3511843 - Error: 403 "No client certificate was found" in ICM trace log

Symptom

The HTTPS connection from ABAP system(working as SSL Client role) failed with the following error in ICM trace log:

[Thr 140665738295040]   HTTP/1.1 403 No client certificate was found.


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Environment

SAP Netweaver ABAP Systems

SAP S/4 HANA Systems

Product

SAP ERP 6.0 ; SAP NetWeaver Application Server for ABAP all versions ; SAP S/4HANA 1709 ; SAP S/4HANA 2023 ; SAP S/4HANA 2025

Keywords

No client certificate was found, 403, ssl/client_ciphersuites, blind sending , KBA , BC-SEC-SSL , Secure Sockets Layer Protocol , BC-CST-IC , Internet Communication Manager , Problem

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