DID YOU KNOW!!!?!?!? As of RQ version 5.15, you can now specify language defaults on a per customer basis. When you are creating the customer in the General tab there will be a new language dropdown.
In the past when printing the receipt for the customer you get a dropdown at that point to select the appropriate language. The default was set based on the database and at times would need to continually select a different option during the print of the receipt. Not anymore! Talk about a per customer custom-tailored experience.
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