Add a screen in CJ01 Tcode

Question

Hai to all,
                I am fresher as abap consultant. Right now i am practicing on enhancement. I came across an example where there is a requirement to add a screen in CJ01 Tcode. there i came across a enhancement name "CNEX0006" i open the enhancement in comd it has 2 FE 2SE 2ME. Here i have a doubt. i learnt some where for every SE there will be function module and for every menu exit there will be function module exit. now my doubt here is if i implemented menu exit which function exit i have to use and if i implement screen exit which function module i have to use.
                For Ex  In this Enhancement i have 2SE if i implemented where i have to write the code. if i implemented another screen exit where in which function module i have to write the code.
          Please help me with an example if possible..

Answer 1

Hi
This article details about the step-by-step procedure in implementing the Screen Exit for CJ01 transaction:
First create a project in CMOD and attach the enhancement CNEX0006 to the project.
   1. Go to se11 and in the PROJ table u will find ci_proj include , in this add the required custom fields.
   2. Go to se51 give SAPLXCN1 in the program name with screen number 0600 , create the subscreen and in the layout choose Dictionary./Program fields and drag and drop in the screen .
   3. If u want to write any logic before the screen is displayed do it in PBO.
   4. Now in the function exit EXIT_SAPLCJWB_002 , go in the INCLUDE ZXCN1U11 and write this logic
      move-corresponding sap_proj_imp to proj.
   5. Now in the function exit EXIT_SAPLCJWB_003 , go in the INCLUDE ZXCN1U12. and write this logic
      move-corresponding proj to cnci_proj_exp.
      Activate the project .
  Cheers
  NZAB