Hii,

Create a custom field on stock.production.lot (e.g., x_pack_date).

Override the barcode scanning method in your picking or lot creation to:

• Parse the scanned barcode string with a simple regex to extract (13)YYMMDD.
• Convert that to a date.
• Write that date into x_pack_date on the lot.

Minimal example snippet (Python):

import re

from datetime import datetime

from odoo import models, api

class StockProductionLot(models.Model):

    _inherit = 'stock.production.lot'

    x_pack_date = fields.Date(string='Pack Date')

    @api.model

    def create_from_barcode(self, barcode):

        # Simple GS1 (13) date extraction

        match = re.search(r'\(13\)(\d{6})', barcode)

        pack_date = False

        if match:

            pack_date = datetime.strptime(match.group(1), '%y%m%d').date()

        vals = {

            'name': 'New Lot',

            'x_pack_date': pack_date,

        }

        return self.create(vals)