add line item ids to receipts/expense claims (and credit notes) on GET and POST successful responses
as with the similar suggestion for manual journals, this would make it possible to keep data in sync between Xero and other systems. Without this ID, if anything so much as the status or one letter in the description changes, there's no way to truly verify you have all the correct lineitems without dumping them all and injecting them again from scratch. yes there are some workarounds, but they all have failure points somewhere without these IDs.
Fantastic idea. Vote "Yes: on Proposition "Line Item IDs" on November 8th.