Password authentication is the most commonly used form of user authentication. It is enabled by default and uses the RACF system password of the user.
There is however a case where it cannot be used in Tectia Server for IBM z/OS: when running Tectia client programs from JCL there is no facility for getting the password interactively from the user. You can set up password in a file or data set, or preferably use public-key authentication and a private key without a passphrase. See Using Public Key for User Authentication.
For more information on password authentication, see Tectia Server for IBM z/OS User Manual.