Hi Gaurav,
We are not using any substitution user exits inside the substitution rule and not using Abap code to write logic specifically for this .just we used the Boolean statements in substitution rule and since there is not additional logic's we dint go for the user exits in substitution rule.
Here I have a doubt..Since the BAPI is not running through screens..Will the validation will be considered in this case?
Reagrds,
Tibin Joseph