Thank you for reaching on Microsoft Q&A portal.
Based on your description, there might be issue with schedule update, can you please double check below things:
Verify the Schedule Configuration
Double-check these settings:
- Time Zone: Ensure the schedule's time zone is correctly set. Azure Data Share uses UTC by default, so if you set the time for your local time, there may be a mismatch.
 - Start and End Times: Confirm that the Start time is in the past and the End time is in the future. If the end time is set for an earlier date, the schedule will not trigger.
 - Frequency: Make sure the frequency (e.g., "Daily") is correctly selected.
 
Manually Trigger a Snapshot
To confirm that the data share itself is still working correctly, manually run a snapshot.
Navigate to your sent share in the Azure portal.
- Go to the History tab.
 - Click Run Snapshot.
 - Choose the full snapshot option.
 - If the manual snapshot completes successfully, the issue is definitely with the schedule, not the data or the share configuration.
 
Validate Alert Configuration
- Go to Monitor > Alerts
 - Ensure the alert is scoped to the correct Data Share resource
 - Confirm it’s configured to fire on snapshot success/failure
 
Test the alert by triggering a manual snapshot
Recreate the Schedule
If the schedule's settings appear correct but it's still not triggering, the best solution is to recreate it. This often resolves any underlying inconsistencies.
- Navigate to the Schedules tab for your sent share.
 - Select the current schedule and click Delete.
 - Click Add Schedule to create a new one.
 - Configure the new schedule with your desired frequency and time, being mindful of the time zone.
 
Please refer these Microsoft document for more details:
https://free.blessedness.top/en-us/azure/data-share/share-your-data?tabs=azure-portal
https://free.blessedness.top/en-us/azure/data-share/data-share-troubleshoot
Hopes this information helps you, if it is please Upvote so that it will help other community members reading this thread.
Thanks,
Kalyani