SAP Knowledge Base Article - Preview

3313319 - CTE - Concur connection fails with NIECONN_REFUSED

Symptom

The Concur Integration (ICS product) is experiencing issues resulting in connection failures with the error keywords NIECONN_REFUSED or NIEHOST_UNKNOWN.


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Environment

  • SAP ERP
  • SAP S/4 Hana
  • Concur Expense
  • SAP ERP Integration with Concur Solutions
  • SAP S/4 Hana Integration with Concur Solutions

Product

Concur Expense 1.0 ; Concur Expense 3.0 ; SAP ERP 6.0 ; SAP ERP integration with SAP Concur solutions 1.0 ; SAP S/4HANA 1610 ; SAP S/4HANA 1709 ; SAP S/4HANA 1809 ; SAP S/4HANA 1909 ; SAP S/4HANA 2020 ; SAP S/4HANA 2021 ; SAP S/4HANA 2023 ; SAP S/4HANA integration with SAP Concur solutions 1.0 ; SAP S/4HANA, on-premise edition 1511

Keywords

NIECONN_REFUSED, Concur integration, Concur connection, NIEHOST_UNKNOWN, icxxconn.c, firewall, SM59, CTE_SETUP, Check connection, proxy, blocking, communication, IP, address, SMICM, ICM logs, WSAEWOULDBLOCK , KBA , BNS-CON-SE-S4 , Concur Suite Enablement S/4HANA Integration , BNS-CON-SE-ERP , Concur ERP Integration , Problem

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