Help CenterOpen the admin

Check-in problems

Scans that open the login page, QR codes that will not read, "token expired", wrong event, and how to fall back to manual check-in.

2 min read · Updated 2026-09-16

Scanning opens the login page#

The member's QR code links to admin.theground.io/check-in, which needs an admin login. Log in on that phone (Google or e-mail) and scan again. To avoid this on the day, open the admin on your phone before the doors open.

The camera app does not read the code#

Any phone camera or QR app works – iPhone and Android cameras recognise QR codes automatically. If yours does not, use a free QR reader app, or check in manually from the member card.

QR code will not scan#

  • Ask the member to increase screen brightness and hold the phone still; avoid glare.
  • Make sure they show the ticket QR code for this event from My events, not a screenshot from weeks ago.
  • If the reader keeps failing, search the member by name in the Member tab and check them in manually.

Messages#

MessageMeaningWhat to do
Invalid check-in link. Please scan the QR code again.Incomplete scanScan again
Invalid or tampered check-in tokenThe code does not match a valid ticketAsk for the live ticket in the app
Check-in token has expiredCodes rotate; this one is oldMember reopens the ticket, scan the new code
This QR code is for a different eventThe ticket belongs to another event of yoursCheck which event the member booked
Check-in period has ended for this eventEvent finishedManual check-in on the card if you must record it
Check-in is only available for approved members.Member is Pending or DeclinedApprove them first (and confirm payment)
This member has already been checked inDuplicateNothing to do; for groups use Update head count
You do not have permission to manage check-in for this eventNot an admin of this eventAsk an organization admin to add you as event admin
You are unauthorized. Please log in again.Not logged in on this phone, or session expiredLog in and scan again

Group tickets: only some of the group arrived#

Enter the number present as the Head count to check in. Later arrivals: scan again or open the member card and Update head count – "Already checked in 2 of 3. You can check in more attendees."

Wrong person checked in#

There is no undo for a check-in. Note it in the member's Internal Record Remarks and check in the right person.

Slow or no internet at the venue#

The check-in page needs a connection to validate codes. Before the event, Manage → Export to CSV and keep the list on your phone as a fallback; tick people off and record check-ins manually afterwards.