Comment 1 for bug 894648

Normally you should be able to change UoM for a product if there is no
transaction (in any state) with this product in sale_line, invoice_line,
stock_move, purchase_line, mrp_production, procurement_order, etc ...It
is too much and too risky to insert such a verification. It is therefore
safer to block change UoM in another category.
As a workaround, you can change temporarily category for PCE from Unit
to Weight, then change UoM of product from PCE to KG, and then change
back category for PCE to Unit. For safety, you must be the only user
connected to the database.
Thanks

On 25.11.2011 09:19, Amit Parik (OpenERP) wrote:
> Public bug reported:
>
> I have to create a one product with default UOM of "KG" with uom
> category "Weight".
>
> Steps:
> Create one product and By mistake I have save the record then set a default UOM as a "PCS".
>
> Now I have to change the default UOM to "KG" but it fires a constraint
> .
>
> "New UoM 'PCE' must belongs to same UoM category 'Weight' as of old UoM
> 'kg'" But I have none of the record belongs to UOM category of "Unit".
>
> Thank you!
>
> ** Affects: openobject-addons
> Importance: Low
> Assignee: OpenERP R&D Addons Team 2 (openerp-dev-addons2)
> Status: Confirmed
>
> ** Changed in: openobject-addons
> Importance: Undecided => Low
>
> ** Changed in: openobject-addons
> Status: New => Confirmed
>
> ** Changed in: openobject-addons
> Assignee: (unassigned) => OpenERP R&D Addons Team 2 (openerp-dev-addons2)
>