Copy EAN13 value in UPC field

[eraser80]

Hello Prestashop Gurus

 

I have a strange request but I hope you could help me.

 

I was thinking if there is a way to have the same value in ean13 (for products with and without combinations) in the UPC field.

 

Is there a code to make this condition like "if the field EAN13 is compiled copy this value and past it in the UPC field"?

 

It's strange..I know..but I need to do this

 

please help me

 

thank you in advance