If you've integrated your Productive account with Xero or QuickBooks, you can enable payments sync with Productive. In other words, if you mark an invoice as paid in Xero or QuickBooks, that status will reflect in Productive as well. This also applies to partial payments, or payments in tranches.
It is important to note that if an invoice is marked as paid in Productive, this change will not be taken into account in Xero or QuickBooks.
To enable payments sync, go to Settings > Integrations and select the pencil icon to Edit the integration of your choice:
Set the switch to "On":
Hit "Save" and you're done.