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3450469 - RFC fails with CALL_FUNCTION_SNC_NAME_NOT_FND error, when system data shows "Canonical name not defined" on SNC0

Symptom

The RFC connection on SM59 via SNC fails with the error:

CALL_FUNCTION_SNC_NAME_NOT_FND

Sysid "<SID>" in target system in table SNCSYSACL is not allowed. SNC
name="<SNC name of the system>"

On SNC0, the system data shows "Canonical name not defined".

Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.


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Product

SAP NetWeaver Application Server for ABAP all versions ; SAP S/4HANA Cloud Public Edition all versions ; SAP S/4HANA all versions

Keywords

CALL_FUNCTION_SNC_NAME_NOT_FND, Canonical name not defined, SNCSYSACL, SNC0, SNC4, SNC, SNC library , KBA , BC-IAM-SSO-CCL , CommonCryptoLib , BC-MID-RFC , RFC , BC-SEC-LGN , Authentication , Problem

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