right now I used PHP SDK to create/update invoices and also I used payments API to make as paid.
but in some cases I need to edit the order even after the invoice is marked as paid, I am not able to find the way how to do it.
Can anyone guys tell me how can I do that?
As it says in the API reference ( https://developer.xero.com/documentation/api/accounting/invoices/#post-invoices ):
When can't an invoice be updated?
An invoice can't be updated if:
* it has been fully paid
* it has part-payments or credit notes applied to it
* it is in a locked period
So no, once it's fully paid you can't update it.
