Hello all,
For those out there with heavy use of a SCCM infrastructure and OSX, I've published the following script that will add SCCM's User Device Affinity (UDA) functionality to your OSX devices when it is set up:
https://gallery.technet.microsoft.com/JAMF-Software-Casper-SCCM-7563a4ab
This is probably useful to anyone else like us that has a lot of SCCM use in addition to their JSS use, and wants reporting/other functionality for UDA on their OSX devices.