Getting Here: Click Configuration > Billing > Invoice Settings:
Double click on the invoice setting shown below.
You can specify whether or not Aria will be able to void invoices to which you have applied one or more credit memos. By default, you cannot void invoices with associated credit memos.
Getting Here: Click Configuration > Billing > Invoice Settings:
Double click on the invoice setting shown below.
Repeat the previous steps and select False to return this parameter to its default setting.