If you see an error saying "Serial Number Already in Use," it means either you are trying to use the same key on two computers without a multi-user license, or your key was leaked online and blacklisted.
In 2022, a trading firm in Surat was fined ₹2.5 lakhs for using a cracked BUSY serial number found on a pirated website. The court ruled that the business owner is liable, not the employee who installed it. busy accounting software serial number