Device Sync Summary errors and the time-mismatch warning
Key Takeaway
Error Code 420 (Time Mismatch) on a Device Sync Summary is a warning that doesn't block sync. To fix it, check the iPad's date and time settings and the user's TimeZoneSidKey in Setup.
A Device Sync Summary, stored in the DeviceSyncSummary object, holds a summary of the data synchronized from a rep's mobile device to the Salesforce org. Each record shows what triggered the sync, the sync status, timings, network conditions and any error code. That makes it the first record to read when a sync looks wrong.
What a Device Sync Summary records
Each Device Sync Summary identifies the sync context through these required fields:
| Field | What it identifies |
|---|---|
DeviceIdentifier | The device |
AppVersion | The mobile app version |
IosVersion | The device operating system version |
MetadataVersion | The metadata version |
SyncStatus is a required restricted picklist with the values Error, New, Ok and Pending, so it gives you a quick way to find syncs that didn't finish cleanly.