Mandatory and Optional Properties

Each request sent by the Outbound API includes properties which are necessary for the request to be processed correctly and those which are only sent when certain value(s) are needed. In this respect, properties fall under either of the following two types:

Optional: the property is not necessary for the request to be processed correctly; if such property is not sent, the request will not return an error; the 'Required' column contains 'No' for such property.

Mandatory: the property must be sent in the request; if a mandatory property is invalid or missing, the request is rejected with a corresponding error; the 'Required' column contains 'Yes' for such property.