BADI OR ENHANCEMENTS EFFECTS ON BAPI

i have done enhancement to va31 so that it allows the scheduling agreement start date to be first of any month . if i use bapi to

upload a list of scheduling agreements. will it effect the Bapi (i.e., if in the flat file the start date is other than first of each month

will it restrict the upload ) or instead of enhancement should i use badi to have the restriction.please suggest <removed by moderator>.

Thanks in advance.

Edited by: Thomas Zloch on Nov 26, 2011 12:41 PM