Conclusion
Handle the default users and their initial passwords
Assigning clear authorizations to employees is not a sign of mistrust, but offers a high level of protection - both for the company and for the employees themselves. By assigning SAP authorizations on a role-specific basis, each employee is given access to the system according to his or her task.
Typically, this includes permissions that can be used to delete change records in the system or electronically erase them. The traceability of changes is also important in the development system, which is why the authorizations listed below should only be assigned very restrictively or only to emergency users.
Communication User
TMSADM: The user TMSADM serves the communication between SAP systems in the transport management system and is automatically created in the client 000 when they are configured. TMSADM only has the permissions to access the common transport directory, view in the change and transport management system, and the necessary RFC permissions. Safeguard measures: Change the user's passwords in each client. There is the report TMS_UPDATE_PWD_OF_TMSADM, which you have to start in the client 000. This is only possible if you have administrator privileges on all systems in the landscape and the password rules of the systems are compatible. After the report has been successfully passed, all TMSADM users of the landscape in the client 000 and their destinations have the same new password.
No more users can be created, maintained or deleted without the assignment of a valid user group. If a user group is not assigned when a user is created, the user is automatically assigned the default user group. Before you set the USER_GRP_REQUIRED switch, a user group must have been assigned to each existing user and the administrators must have the permissions for the default user group. When creating a new user, the default user group will be used as pre-occupancy; this user group can be overridden by setting another user group in the S_USER_GRP_DEFAULT user parameter for each user administrator. The customising switch requires a valid user group, because it is used as the default user group. If a valid user group has not been entered in the customising switch, the user group is nevertheless a mandatory field. This will lead to errors in automated user creation.
Assigning a role for a limited period of time is done in seconds with "Shortcut for SAP systems" and allows you to quickly continue your go-live.
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You can evaluate the logging settings of the tables using the RDDPRCHK report or the RDDPRCHK_AUDIT transaction in the SAP system.
Therefore, a random check of the authorization structure in this environment can be reduced to table authorizations.