Hello again,
I have checked the transaction SM58 and the idocs are wrong with the message text SR 053 - "The user and password are not correct".
I have tried to run again the idocs with the menu right button option "Execute LUW" and a logon screen is displayed. However, if I insert my user and password the system raises an error:
Function module does not exist or EXCEPTION raised
Message no. SY359
And the status text now is "Password logon no longer possible - too many failed attempts". But if I logon in SAP my user is not locked.
Thank you.
Best regards.