Communication Users - Users are not allowed/possible to logon using SAP GUI and can't able to access the data through SAP GUI screens. Communication. You cannot use it to log on to SAP websites, e.g. However, when using SSO authentication to logon either through EPM Add-in or BPC Web Admin, if the backend password validity has expired the user is unable to logon due to the enforced password update. How to check if the password of a communication user is expired? When setting up the password set the userID your going to use as dialog first and when you log-on to the system, it will prompt you to change the password. Best Practice - How to analyze and secure RFC connections - SAP sap communication user type password expire intranetvine.sysvine.com SAP Help Portal answered Sep 22, 2020 at 2:13. Technical communication users can be requested via this app. If the user is an anonymous, public user that many different individuals can use, then define it as a service user and keep its authorizations to a minimum. c) Key User got locked. . But some top management users wants their user to be out of this policy. Dialog users require some RFC authorizations as well but for now let's concentrate on system users. Enforce Password Security Policy at Logon Communications user password expires | SAP Community Specifies the maximum period for which an unused productive password (a password set by the user) remains valid. Multiple dialog logons are checked and, if appropriate, logged. It determines, for example, if the password of a user can expire or if it must be changed after the initial logon. Users are allowed to change the password if expired using external link. Dialog logon (using SAP GUI) is not possible. After this period, the user must set a new password during his or her next log on attempt. At that time I only reset the password and give it to user. A technical communication user is an isolated user used for connectivity purposes only. Dear all, I know that user type communication (C) are no more used in SAP systems. There are five user types in SAP: dialogue, communication, system, service . And users are following it very nicely. System. 2907117 - Does the S-user ID password expire for the SAP ONE Support ...