Datasource 2LIS_02_HDR enhancement

Question

Hi Expert,
Iu2019m working on datasource 2LIS_02_HDR enhancement - add a field u201CNet payment termu201D ( EKKO-ZTERM).
I understand I can add this field in 2 ways as specified below
a.     Adding this field to Communication Structure (MCEKKO, in this case) and then pulling to the Extract Structure
b.     Directly appending this field to the extract structure (MC02M_0HDR, in this case).
I would like to know which way from the above is the best and why? Whatu2019s the difference to choose one way over another?
Thank you.

Answer 1

Hi,
Better to append structure to extract structure.  Go through following steps - 
Goto CMOD---- select Enhancement assignment - - browse at project search box- Where you may find group of projects already created with discriptions like---- > Project for customer function cals for SAPI or project for user exits(like this for my projects).
If you dont have already created projects then create a project -
Go to CMOD -- by giving naming starts with Z--->
Assign the enhancement RSAP0001 & click on Components
Choose the function exit EXIT_SAPLRSAP_001
Activate the Project.
Double click on the function exit EXIT_SAPLRSAP_001, this will open the function module
Please note that, alternatively once the project is activated with the required function exit, this can also be displayed in the t-code for Function modules se37.
Double click on the include ZXRSAU01, to open the editor where the required coding can be done.
In the above function module (exit) the import parameter I_DATASOURCE
holds the data source (i.e. name of the data source)
The tables parameter C_T_DATA holds the values of the datasource whose structure is same as the data source structure
Regards,
rvc