Search produts by EAN or UPC codes

[santinuro]

Hello,

I´m using Prestashop 1.6 and the Quick search block. The thing is that this module uses the fields; name of the product, reference, desciption.. for searching but it doesn´t use the EAN code or the UPC code in the search and I need it uses one of them.

Any idea how can I modify the module? or solve the problem?
 

Thanks!