I have customized the report that you guided me to do it. However, I don't think it works. It just lists out the transactions of payment and invoice, which does not really show which payment matches with which invoice.
Moreover, there lack some invoices we had recorded before on the report (some invoices on 11/30 and 12/31/18). Please refer to the picture attached. I just give you an example.
Could you help me tackle these difficulties?