I work in a company in Germany and I'm fairly new to my colleagues. Recently our team got a new boss. During a task that my boss performed he pointed out the the outcome was not to his pleasure and so I volunteered and fixed it.
The next day my boss messaged me a simple 'Thank you for fixing problem x'.
Should I answer with a you're welcome? Or do I not because the message would normally not require an answer? Would it be rude to not send a message back?