Sale Order Sequence by Operating Unit

This module lets you give every operating unit its own sale order number series. On the operating unit form you get a new field, Sale Order Sequence, where you pick the numbering sequence to use for that unit.

When a sale order is created without a number, Odoo looks at the operating unit on the order (or the default operating unit if none was chosen) and, if that unit has a sequence, uses it to generate the order reference. If the unit has no sequence, the normal Odoo numbering is kept.

When the module is installed, a sequence is automatically created for each existing operating unit, named after the unit and using a prefix built from the unit code followed by "-SO", with five-digit padding. These sequences are linked to the matching operating unit.

It touches the operating unit configuration screen and the sale order creation process, and relies on the operating unit feature already provided by the sale operating unit module.