Short answer
Yes, especially on your first deletion or when cleaning many calendars at once. Verify the result on one calendar before processing the rest.
WipeAway shows you an event count before anything is deleted, which allows you to verify your settings are correct. But for an extra layer of confidence — particularly the first time you use WipeAway, or when cleaning a large number of important calendars — testing on a single calendar first is a sensible step.
How to test on one calendar first
- Select only one calendar in WipeAway — the least critical one you need to clean
- Set your cut-off date
- Review the event count and confirm it looks right
- Confirm the deletion
- Open that calendar in Google Calendar and verify the results
- If everything looks correct, run WipeAway again with the remaining calendars
When testing is most important
- First-time users of WipeAway
- When cleaning production or business-critical calendars
- When the calendar contains important data and you are not entirely sure of the cut-off date
- When cleaning many calendars at once and you want to confirm the settings before processing all of them
Remember: if you exported a backup before starting, you can re-import events from the ICS file if anything needs to be corrected.