Stock Sale Line Description

This module links stock transfers back to the sale order line that created them. On every stock move it adds a read-only field called Sale line description, which simply displays the description text of the related sale order line.

Where it appears: - On the transfer (picking) form, in the Operations tab, a new optional column "Sale Description" can be shown next to the existing picking description. It is hidden by default and can be switched on with the optional-columns toggle. - On the delivery slip report, the sale line description is printed under the product name, both for normal product lines and for lines tracked by serial or lot numbers. - On the aggregated delivery slip layout, the description of the sale line is also printed.

Access is controlled by a new security group, "Sale Description Control". Only users in that group can see the column on the transfer form and the extra text on the delivery slips; other users see the standard documents unchanged.

The module touches stock.move (adds the description field) and stock.picking (form view), and extends the standard delivery slip report templates. It does not create new menus, and it does not change prices, quantities or stock valuation.