Why does Sync Results fail or return no new results?
A failed sync and an empty sync are two different things.
Two different situations
If Sync Results fails
The refresh did not complete successfully. Retry once. If it fails again, the issue may be temporary — wait a few minutes and try again. If the failure persists, contact support.
If Sync Results succeeds but adds nothing new
This usually means no meaningful new data was available to ingest. This is not an error. It just means the underlying tracked landscape has not changed since the last sync.
How to interpret it correctly
Treat "no new results" as a data outcome, not as a bug. The real question is whether your current prompt set should reasonably be producing new movement at this moment. If you only added prompts an hour ago, results may take longer to arrive.
When to be concerned
If sync consistently returns nothing new for several days even though your prompts are active and your brand is in a competitive space, that is worth investigating. Contact support if you cannot explain it.