Can't change login SQL server

[so10070]

I entered an incorrect username and can no longer change it. I automatically get an error message when connecting to the server.  How is it possible to change my login.  After I click "OK" I always get an error: "Can't make connection".  But the only thing I wan't to do, is enter the correct login and pasword.  What do I have to do for this?

[so10070]

Thank you very, very much. 😀

[Tahreem24 · Accepted solution]

@so10070 Please mark my reply "Accept as Solution" to close this thread and also it will help other users to find the solution,. Thank you 😊

[Tahreem24]

@so10070 Try to clean up the old credentials then enter the new one. So  Go to Transform Data >> Data Source Setting >> Clean Permission