I'm in trx CMOD from where can I create the function ZXF05U01 for the vendors ?
Go to Cmod transaction first create the project starts with Z or Y. then add the enhancement SAPMF02K ,
now click on componenets you can see the function EXIT_SAPMF02K_001
double click on that , and see the Include ZXF05U01,
now click on it , it gives you a warning message. just ignore and press enter.
and create the include and add the code to that include, activate.
finally activate the project also.