Hello,

I am trying to develop a desktop app with Odoo API, which will allow our staff to input the serial number of work orders via a specialized scanner. However, when I pass the value to Odoo via API, the value does not update on screen unless the user refreshes the screen. I tried using api.onchange() but it only triggers upon form modification, not when the value is written directly. 

I was going in circles for days - If anyone can give me some pointers it will be greatly appreciated. Thanks!!

Below is the code on client (API) side:

#Write serial number to Work Order
print('Updating serial number to Work Order...')
models.execute_kw(db, uid, password, 'mrp.workorder', 'write',[[workorder_id],{'x_serial_number_id': serial_number_id}])

Below is the code on server (Odoo) side:

from odoo import models, fields, api 

class RFID(models.Model):
    _inherit = 'mrp.workorder'

    x_serial_number_id= fields.Many2one('stock.production.lot', string='Received Serial Number', store=True)
   
    @api.onchange('x_serial_number_id') 
    def update_serial_number(self): 
        for record in self:
            if not record.final_lot_id: record.final_lot_id = record.x_serial_number_id
    return False