I think it's always a good idea to avoid uploading the same documents in multiple places.
If I attach a receipt to a transaction, and I tell Xero that the transaction is billable to a client or project. When I link that transaction to an invoice, it should pull forward the linked receipt. Right now I have to manually upload the receipt to the invoice, not only is that a duplicate step, but it also allows for errors or mismatched receipts.
I think it's always a good idea to avoid uploading the same documents in multiple places.
If I attach a receipt to a transaction, and I tell Xero that the transaction is billable to a client or project. When I link that transaction to an invoice, it should pull forward the linked receipt. Right now I have to manually upload the receipt to the invoice, not only is that a duplicate step, but it also allows for errors or mismatched receipts.