How to USE ORDER_DATA_LOCPRODS()

Hi All,

How to USE  ORDER_DATA_LOCPRODS() in Macro to restrict Category  BH coming from one location.

I have a scenario .

Have 1 product belong to 4 location A,B,C and Z

Lane is from Z to A

Lane is from Z to B

Lane is from Z to C.

So distribution demand comes from A,B, C to Z.

while calculating independent Req I want to consider Dis. Dmd coming from C but don't want to consider Dis. DMD coming from A and B.

I Am trying to excluse Location A and B using Macro while calculating independent Req, but don't know much about macro.

Please Help me,  how to exclude it using macro.