3509618 - "GSS-API(maj): No credentials were supplied" error in SM59 with kerberos-based external SSO-Solution

• Connection test on SM59:
  Connection error
  Error when opening an RFC connection (CPIC-CALL: 'ThSAPOCMINT', communication rc: CM_SECURITY_NOT_VALID(cmRc=6)
  ERROR: GSS-APJ(maj): No credentials were supplied, or the credentiaGSS-API(m
  LOCATION: SAP-Server <AppServer> on <HostName> (wp <nn>)
  DETAIL: SncPAcquireCred
  ...
  
  
• dev_w<nn>:
  
  N  *** ERROR => SncPAcquireCred()==SNCERR_GSSAPI  [***]
  N        GSS-API(maj): No credentials were supplied, or the credentials were unavailable or inaccessible
  N        GSS-API(min): Can't find client principal SAPService<***> in cache collection
  N      Could't acquire INITIATING credentials for
  N      name="p/krb5:<***>"
  N      FATAL SNCERR -- Initiating Credendtials: "krb5" (0x0002) not available!
  
  
• dev_w0:
  N    The SNC-Adapter identifies as:
  N    External SNC-Adapter (Rev 1.0) to Kerberos 5/GSS-API v
  
  
• The used library indicates that third-party Kerberos libraries are being used:
  RZ11:
  Value of Profile Parameter snc/gssapi_lib = /usr/lib64/snckrb5.so

SAP NetWeaver Application Server for ABAP

No credentials were supplied,SM59, Kerberos, SNC, SSO-Solution, third-party , KBA , BC-MID-RFC , RFC , BC-SEC-SNC , Secure Network Communications , Problem