Beas dealing Business partner catalog numbers

In B1 there is a standard functionality - the BP Catalog numbers. For each Item for each BP you can define different Itemnumbers.

For now - if we receive items from suplier and the suplier has his own item numbers - we annot use beas for Goods receipt. Neither in Beas, nor the Webapps. I i submit the item number from suplier, there is no function, which would find our item number.

In SAP B1 there is such functionality.