Add items to existing invoice via API

1

The docs aren’t clear as to whether or not you can add items to an already existing invoice via the API.

Is it possible?

Thanks in advance.

2

Yes, that should be possible if the invoice is a draft.

There isn’t an API endpoint to add a single invoice item, however you can first get the current array of invoice items (Get a single invoice), add your new invoice item to it, then update the invoice.

Cheers,
Dominic