How To Fix SNC017 - Invalid external ID length (&1) passed

SNC017 - Overview

• Message type: E = Error

• Message class: SNC - Secure Network Communication, SNC

• Message number: 017

• Message text: Invalid external ID length (&1) passed

What causes this issue?

The transferred length &V1& of the external identification is either
less than one or greater than the maximum permitted length.

System Response

The logon is terminated.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SNC017 - Invalid external ID length (&1) passed ?

  The SAP error message SNC017: Invalid external ID length (&1) passed typically occurs in the context of Secure Network Communications (SNC) when there is an issue with the length of the external ID being used for authentication or identification purposes. This error indicates that the length of the external ID provided does not meet the expected criteria defined by the SNC configuration.
  
  Cause:
  
  Invalid Length: The external ID being passed is either too short or too long. Each SNC implementation has specific requirements for the length of external IDs.
  
  Configuration Issues: There may be a misconfiguration in the SNC settings, such as incorrect parameters in the SNC profile or settings in the SAP system.
  Data Entry Errors: The external ID may have been incorrectly entered or formatted, leading to an invalid length.
  Compatibility Issues: The external ID may not be compatible with the SNC library or the version of the SAP system being used.
  
  
  Solution:
  
  Check External