PO Confirmation - Auto Industry

Hello all,

Scenario:

Plant A is raising PO on the Plant B for 100 Units of a material. Plant B sends confirmation for 90 units. The requirement here is when plant B sends confirmation for 90 units; it also has to confirm the VINu2019s (Vehicle Identification Numbers) associated with these 90 units.

How can we accommodate this request and what is the best practice available?

Regards

RJS