Hello sap community,
I've recently installed a SAP EHP7 ERP 6.0 with SQL database to do a LAB test.
But i am having a peculiar problem with the parameter used to disable or enable the user SAP* (login/no_automatic_user_sapstar).
What i need is to enable SAP* to log in to the client I created as a LAB. To do that i added the parameter login/no_automatic_user_sapstar in the DEFAULT profile with value 0 (value 0 is to enable logging in with the user right?). Then I restarted the instance. Then i tried to log in with SAP* and the password "pass" but the system tells me the user or password is wrong.
To troubleshoot I tried deleting the parameter of the default profile and add it in the Instance profile, without luck.
Then i deleted the parameter from both profiles. Then using TCODE SU01 said the user SAP* was locked due to many login attempts, so I unlocked it and tried to log in with it (using default password "pass) and of course it didn't work because the parameter was not set on any of the profiles, but then i went in to SU01 again and reset the password for SAP* to Password1 and doing that i was able to log in 
.
Why was i able to log in, even though i dont have the parameter set in any of the profiles?
Why the parameter have no effect in any of the profiles with either value 0 or 1?
And why I can reset the password of SAP* and log in with it, even though there is no parameter enabling the use of this user? and no one has created a user SAP*.