In CMOD creating Project

Question

Dear Expert,
            While doing the CMOD, when i click on the Include i m getting the error "Program names ZX... are reserved for includes of exit function groups".
i have done( Go to transaction CMOD
- Create a project called ZVA01
- Choose the Enhancement assign radio button and press the Change button
In the first column enter V45A0002 Predefine sold-to party in sales document. 
Note that an enhancement can only be used in 1 project. If the enhancement is already in use, and error message will be displayed
Press Save
Press Components. You can now see that enhancement uses user exit EXIT_SAPMV45A_002. Double click on the exit.
Now the function module is displayed. Double click on include ZXVVAU04 in the function module )
<b>i m clicking on the ZXVVAU04 then the error is comming,</b>
Plz help

Answer 1

Hi
That message is only a warning, so you can go on:
- <b>press enter</b>, the system'll create the include ZX... where you have to insert your code.
The message is advising you're creating an include for an enhancement
<b>Reward points</b>
Regards