Official comment
Hi Frank,
Creating Financial Timephase Date is a two-step process. First, you have to create a NonLaborResourceLinkDirect link between the work item and NLR:
PUT https://api.clarizen.com/v2.0/services/data/objects
{"id": "/NonLaborResourceLinkDirect", "WorkItem": "/WorkItem/xxx", "NonLaborResource": "/NonLaborResource/xxx", other relevant fields...}
In the response, you will receive the ExternalId of the link that was just created.
Then you can create NonLaborResourceTimePhase on the link created in the first step like so:
PUT https://api.clarizen.com/v2.0/services/data/objects
{"id": "/NonLaborResourceTimePhase", "RelatedLink": "/NonLaborResourceLinkDirect/ExternalIdFromStepOne", other relevant fields...}
I hope this helps.
Roland