changing uom after sales order being created

Hi All,

I know that changing primary UoM is not supported in Enterprise, but sometime there's no other option and the existing items must be changed.

So I was wondering about this.

Supposed that I have item A with primary UoM = EA.

I create a sales order with item A and here's what F4211 look like :

- SDUORG = 30,000

- SDUOM = EA

- SDUOM1 = EA

- SDPQOR = 30,000

- SDUOM2 = EA

- SDSQOR= 30,000

The sales order continue to manufacturing process.

After that, we change the primary UoM in item master P4101 from EA to Roll with conversion 1 Roll = 1000 EA.

Now, quantity on hand = 30 Roll.

When user doing shipment confirmation, there's an error said "Confirm will cause Negative On Hand Quantity".