QuickBooks : Change of Unit of Measurement (UOM)

I received a support call from one of the Hong Kong’s QuickBooks user; currently they are using QuickBooks 2007/08 (Asia). There was a mistake made earlier in the UOM type for some of the items.

Example:

Item number: 123
UOM for Stock: ea (Each)
UOM for Sales: ea (Each)
UOM for Purchase: ctn (Carton)

There were historical transactions on these items, such as Bills and Invoices. They wanted to change the UOM type for some of the items. They would like to change it to such as:

Item number: 123
UOM for Stock: ea (Each)
UOM for Sales: ea (Each)
UOM for Purchase: ea (Each)

This couldn’t be done in QuickBooks 2007/08 or any of the earlier versions. In QuickBooks 2007/08, it’s only allows you to change the typo if the UOM for Stock, Sales and Purchase are the same. Example, you can change 3 fields from “ea” to “pcs”.