Change vendor default settings
From Protemos Wiki
Vendor default payment terms page: http://cloud.protemos.com/vendor/change-default?id=ХХХХ (replace XXXX with a valid number)
On this page, you can change your vendor's default currency, payment conditions, and locale of invoices:
Note: Payment methods can be created in the Payment methods settings.
Vendor invoices PDF locale
By default, the system uses the locale (language,date and time) of invoices specified in the "Default settings" of your account whenever vendor invoices are generated.
But here you may define the different one only for this particular vendor.
Note: The PDF locale setting defined in a vendor's profile overrides the default one specified in the account default settings .