How to add a field in field catalog ?
Basically , this is the part of ABAPers. bt i can help u out in this regard.
First u hav to prepare FS for developing the TS.
process follows as below:
First, u hav to create the Sub component type for that field in their component which will start with ZZxxxxx and save check activate.
then u have to allow this component into KOMP table i.e. pricing table.
then u have to include this into include SAPMV45AF(sales order) and SAPRV45AZ. by using user exits.
then u can find this field will be available for pricing in standard condition technique procedure.