- Navigate to Lists > Relationships > Customers > View the customer record indicated on your invoice
- On the Preferences tab, set Language = customer's local language (eg Thai)
For Customer forms that were not upgraded after Release 2012.2, the Language field can be found on the Info tab. Also, please consider that on customized forms the field can be moved to other tabs. If the form is customized, then the field can be found by expanding all tabs and using the browser's Find action.
When you go back to your Invoice for this particular customer, you should now have the option to Print in Customer's locale.