Trigger CIF during custom field change on Purchase Req. and PO

Hi,

We added a custom date field in Purchase Req. and Purchase Order transactions (ME52N/ME22N) in ECC. When this custom field gets changed along with any other standard field, outbound CIF process happens. However, when we change this custom field only, then outbound CIF doesn't happen. I believe we need change pointers and may be custom code to trigger outbound CIF. I would appreciate any suggestions on how to achieve this functionality.

Thanks.

Naveen