Hello,

I'm trying to show lot serial and their expired date in sales invoice line using Odoo Studio but it doesn't work. 

I've tried in Odoo Studio in sales invoice line, to add a new related field but I've only get sales order line or product but nor from lot or delivery line. Using product or sales order related fields, I've tried to add lot serial and expired date using stock but I always obtain error when try to do the sales delivery with an stock.quant error. I understand that I should obtain the lot serial and their expired date from the sales delivery line or from the lot, but I cannot see that related fields.  I don't want the expired date from the product, I need it from the lot or from the sales delivery.

I'd like to know the right way to add lot serial and expired date in sales invoice line, related from the sales delivery or lot and using Odoo Studio.

Thanks