I have tried several times to googling but still im struggle. I already passed my value using _prepare_order_picking methods but the value does not show up, so i change my code using stock_order_procurement still it does not show up too . Please help :) .
models.py
_inherit = 'sale.order.line'
@api.multi
def _prepare_order_picking ( self , cr , uid , order , context = None ):
res = super ( SaleOrderLine , self ). _prepare_order_picking ( cr , uid , order , context = context )
res . update ({ 'description_picking' : self.product_id })
return res