RFC Error: SAP GW is not a trusted system or the security key is invalid

Message type: E = Error

Message class: /IWFND/CM_BEC - Backend Connectivity

Message number: 020

Message text: RFC Error: SAP GW is not a trusted system or the security key is invalid



What causes this issue?

The SAP Gateway hub system is not a trusted system or the security key
for the system is invalid.


System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.



How to fix this error?

Reconfigure the trusted relationship between the SAP Gateway hub and the
backend system.


Procedure for System Administrators


Error message extract from SAP system. Copyright SAP SE.