Do a PUT on "/qrs/selection/767d3de9-4b24-41f4-a9ed-c11a1d0097bb/app/object/synthetic" with the following body:
"modifiedDate": "2018-05-07T18:03:35.598Z", <- I've tried several values here
Receive the following error:
"Response status code does not indicate success: 409 (Conflict)."
I have tried putting the modifiedDate both inside and outside the "properties" structure, and have tried the modifiedDate on both the selection object, and the app object itself. I have also taken the step of doing a full get on the app object itself just prior to my PUT call to ensure that I have a correct modifiedDate.
The code used to construct URLs, set up headers, etc., is all reused from a library that works perfectly well with every other call (including publish calls, exports, etc.) It seems that I just do not have the right formulation of the body for the PUT call.