Insert invoice lines via the API
Currently you can do this only by resupplying ALL current invoice lines along with the new line. There is a concurrency issue here between when the invoice was read via the API and resupplied to the API for the update. Can you make it so we only have to supply the new invoice line to the API and it be added to the invoice?
I have just bumped into this problem and would appreciate it really as i am importing data from another accounting package where line items are being printed to an output file and i am reading each item line by line.