Hi Josh, thanks for your step by step and it works.
However, I realize that if I use General Journal, then there is no way for me to print out an invoice to give to customers.
Just for anyone who might be looking to know.
It's better to create using Service Memo so that you can print out the tax invoice to give customers.
Why would customer need any invoice for this? Because at the end of the month or year, when the statement is being sent to them, they might want to know why was there a reverse or to ensure there was a reverse.