We have just extended the Payments API to include a data point previously inaccessible. The Thirdpartyreference relates to a reference attached to a donation by a third party or other. The data point is now returned here: https://dataapi.justgiving.com/docs/resources/v1/Payment/GetPaymentById
You can find a full, downloadable list of all Defined Report values here: https://justgivingdeveloper.zendesk.com/hc/en-us/articles/6692670170012-What-are-the-defined-report-values-
ThirdPartyReference added to Payments API
