When you are performing the check source system in the transaction code RSA1, below error message is displayed.
The following errors occurred in the source system: RSAR 374
Result of the destination check: Name or password is incorrect (repeat logon) RSAR 375
Solution
Go to the transaction code SM59, ABAP connection. Find the related RFC connection. From the Menu Bar, click Utilities > Test > Authorization Test.
If you are getting the below error message, the user/password is incorrect.
Correct the user/password of the RFC connection.
Note: If the user/password is correct, please check the other possibilities i.e. user locking, user validity, password initial etc.
