In Version 18.3, we added a new Invoice Setting to determine if a person can change the Invoice Status to Complete and Paid.  The setting is named "Allow Manual Override of Completion Status".

If Yes,

If the setting is Yes, then anyone in the company can change the status of the Invoice to Complete & Paid, regardless of whether or not the invoice is paid in full.

If No,

If the setting is No, then the software will change the status of an Invoice to Complete & Paid only when it sees there is a zero amount owed balance.  Here, the Complete & Paid option will no longer be an option in the invoice status drop list.

Location

• Left Menu - Settings
• Invoice Settings -> General Settings
• General Settings Section