Zoho Invoice and its backwards payments received
In business many occasions we receive checks which cover 2 or 3 invoices. When adding payments to the system we're forced to go to each invoice and mark them paid instead of adding a single payment at once and selecting the invoices being paid. Other then this wasting unnecessary time, it also screws up accounting when looking at reports. We end up looking for payment amounts we supposedly received but they do not exist since it was a one single large payment. It also forces us to send multiple payment received / thank you emails.