3642482 - Failed to perform tenant DB copy/remove due to error "invalid user format in credential obtained"

You try to perform tenant DB copy/remove by using system replication. It is failed when you try to create the credential with referring to following guide.
Create Credential for Authenticated Access to Source System

Here is the error you get:

Could not execute 'create DATABASE <targe tenant DB SID> AS REPLICA OF <source tenant DB SID> AT '<source hostname>:<nameserver port>'' in XX ms XX µs .
SAP DBTech JDBC: [2]: general error: nameserver failed to process the request;ltt exception: exception 7100010: Database replication error: invalid user format in credential obtained.

HANA 2.0

system replication, ssl, PSE, GET_DATABASE_REPLICATION_PSE, system copy, enforce_ssl_database_replication   , KBA , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) , How To