CFM2 transaction in R/3

I am working on a user exit in APO , which gets triggered with CFM2 transaction . After activating a model with CFM2 TCode in R/3 , a logon screen is opened with my id and its asking for a password in APO system. I tried to enter my password it didnt accept and now it gives an error saying " password logon no longer possible- too many failed attempts " .

Is that anything to do with RFC connectivity . Do we need to take help from basis so as to automatically connect to SCM system.