0x87D101F4 (decimal -2016345612) maps to OMA-DM SyncML status 500: "The recipient
encountered an unexpected condition which prevented it from fulfilling the request." The
device's configuration service provider (CSP) hit an unhandled error while applying the
setting. Like 0x87D1FDE8 it is generic — the SyncML status tells you the device choked,
not why.
0x87D101F4
SyncML(500): unexpected condition on the device
What it means
Common causes
The CSP handling the payload threw an internal error — often a transient condition that succeeds on the next sync.
The setting or profile type is not supported on this Windows edition or build.
Corrupt local MDM/enrolment state on the device.
For certificate payloads: the certificate store or key storage operation failed unexpectedly mid-processing.
How to fix it
Sync the device again first — a meaningful share of SyncML(500) failures are transient and clear on retry.
Check the DeviceManagement-Enterprise-Diagnostics-Provider Admin event log around the sync time for the concrete underlying error.
Confirm the profile's settings are supported on the device's Windows edition and version (Home/Pro/Enterprise differences are a classic cause).
If one device fails persistently while others succeed, suspect local state: as a last resort re-enrol the device into management.