Developer ID
Developer ID is your nShift Delivery user ID. It's used as identification to make it easier for nShift to assist and support you.
Note
Being a partner you should always provide your nShift Delivery user ID, not your customer's.
REST API - enter
developerId
(string) in theshipment
object.XML -
<val n="developerid">
is declared as<meta>
element under the root element<data>
.