Assigning Credentials to Oracle GoldenGate
The Oracle GoldenGate processes require one or more database credentials with the correct database privileges for the database version, database configuration, and Oracle GoldenGate features that you are using.
Create users for the source and target database instances, each one dedicated to Oracle GoldenGate. The assigned user can be the same user for all the Oracle GoldenGate processes that must connect to a source or target Oracle Database.
See ALTER
                                                CREDENTIALSTORE command usage to
                                manage credentials in a credential store for Oracle GoldenGate
                                users.