# What is “Repeat-scan limit”?

A repeat-scan limit is an attendance rule that allows or blocks multiple check-ins by the same person at one activity, preventing duplicate entries and double redemptions.

Also called: duplicate scan rule, scan limit

SSociana team·19 Oct 2026·2 min read

## Repeat-scan limit in detail

Some activities should be scanned once: a meal, a gift collection, a bus seat. Others are naturally repeated: a registration desk revisited, a networking lounge, a gym slot. The repeat-scan limit lets the organiser say which. Set to one, the first accepted scan counts and every later attempt is recorded as a rejected attempt, with the scanner seeing a clear message. Set higher, it permits the stated number. Because attempts, scanner and time are kept, the organiser can later see who tried to enter twice and when, which is useful for dispute handling and for spotting shared passes. The limit works with time windows: a person may be allowed one scan in a window, but a new window, such as the second day's dinner, resets the opportunity. Communicate the rule to volunteers before the event so they know a rejection is the system working, not a fault.

## How Sociana uses it

The limit is a setting in the activity's attendance rule. Rejected repeats appear as scan attempts, separate from unique accepted attendance.

## Example

A dinner activity accepted one scan per delegate, with repeat attempts logged but not counted.

[QR attendance & activitiesWhere this term lives in the Sociana app.See how it works](https://sociana.in/features/qr-attendance-and-activities/)

## Questions

What does a repeat-scan limit stop?

Double entries and duplicate redemptions, such as a second dinner scan or a shared pass being used twice. A repeat-scan limit is an attendance rule that allows or blocks multiple check-ins by the same person at one activity, preventing duplicate entries and double redemptions.

Are repeated scans still recorded?

Yes. They are kept as scan attempts with scanner and time, but they do not count as accepted attendance. Set to one, the first accepted scan counts and every later attempt is recorded as a rejected attempt, with the scanner seeing a clear message.

Can the limit be more than one?

Yes. The organiser sets the number of accepted scans per person for each activity, depending on whether repeats are legitimate. A dinner activity accepted one scan per delegate, with repeat attempts logged but not counted. The repeat-scan limit lets the organiser say which.

## Keep reading

[QR attendance & activities](https://sociana.in/features/qr-attendance-and-activities/)[Entry pass & personal QR](https://sociana.in/features/entry-pass-and-personal-qr/)[Conferences & summits](https://sociana.in/event-types/conferences/)[Weddings & destination weddings](https://sociana.in/event-types/weddings/)[Attendance rule](https://sociana.in/glossary/attendance-rule/)[Unique accepted attendance](https://sociana.in/glossary/unique-accepted-attendance/)[Self check-in](https://sociana.in/glossary/self-check-in/)[How to stop duplicate entries with QR passes](https://sociana.in/guides/stop-duplicate-qr-entries/)

[Back to Glossary](https://sociana.in/glossary/)

## Want this off your desk?

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Canonical: https://sociana.in/glossary/repeat-scan-limit/
Publisher: Sociana by Alien Brains Private Limited (https://sociana.in/)