Hi, i am using odoo11. I activated the lot traceability.

I create a purchase order and click on "receive products", so I end up in the following page:

By clicking on the menu icon (the one the red arrow is pointing to), a pop-up opens where the user can enters the various details including the "done" quantity and the lot name:

Now, what I really wanted to do is to make so that the lot number is automatically generated (in a given format) and set in the circled area.

I wrote the python code that generates the lot, and it works (actually my code generates the new lot when I validate the purchase order, so when i get here the lot already exists). My problem is to set the lot value in the circled field. (let apart the fact that odoo differentiates between lot_name and lot_number, which added a bit of perplexity in my already confused mind... but i'll think of it later)

So i investigated looking at the views, trying to understand where to put my hands.

The view corresponding to my second image is "stock.move.operations.form", and the code that defines the move lines is the following:

<field name="move_line_ids" attrs="{'readonly': ['|', ('state', '=', 'cancel'), '&amp;', ('state', '=', 'done'), ('is_locked', '=', True)]}" context="{'tree_view_ref': 'stock.view_stock_move_line_operation_tree', 'default_product_uom_id': product_uom, 'default_picking_id': picking_id, 'default_move_id': id, 'default_product_id': product_id, 'default_location_id': location_id, 'default_location_dest_id': location_dest_id}"/>