Follow-Up and Replacement Articles in SAP Retail

Hi everybody,

Iu2019m using SAP Retail and I need to maintain Follow-Up and Replacement Articles.

Iu2019ve created the Follow-Up Categories in the customizing and Iu2019ve assigned replacement article to the original article in transaction WRFFUART.

Does anyone know how the subsequent process works? If I create a Purchase Order or a Sales Order to the original article, does the system automatically replace it by the replacement Article? Iu2019ve tested this but there was no substitution.

Thanks in advance,

SN