We have SMT server configured on SUSE Linux Enterprise Server 11 Service Pack 3 (SLES 11 SP3) and trying to register SLES 12 systems against the existing SMT. Getting below message when i'm trying to execute the command "smt-ncc-scc-migration". Appreciate if anyone can help here.

Checking if a migration is possible ...
Connection to registration server failed with: 401 Unauthorized
Failed to get product information from SCC. Migration is not possible.