Fix Lightspeed K-Series sync problems
When something does not sync between 10Seat and Lightspeed K-Series, 10Seat records the reason. This article lists those reasons in plain language, what you see, and how to fix each one. 10Seat support can see the exact reason for every reservation or bill; give them the guest name, date and time when you contact them.
Where to find it
Backoffice › Settings › Integrations › POS integration › tab K-Series. The status cards, the Reservation sync toggle, the table mapping and the K-Series webhook live log are all on this tab.
What it does
Problems fall into two directions: 10Seat → Lightspeed (reservations and seating don't reach the POS) and Lightspeed → 10Seat (bills don't show up in 10Seat). A few block both directions.
How to check the connection
- Open the K-Series tab for the affected location.
- Check you see Lightspeed account connected, a Linked Lightspeed location, and Restaurant integration activated.
- Check Push reservations to K-Series is on.
- Check there is no "Access token expired" warning.
- Check the table in question is mapped in K-Series floor & table mapping.
- Update an order in Lightspeed and look for a new line in K-Series webhook live log.
Troubleshooting
Bills come into 10Seat, but reservations never reach Lightspeed Most often Push reservations to K-Series is off — switch it on. Otherwise the restaurant integration isn't activated ("Restaurant integration not activated yet") — click Activate restaurant integration — or no business location is linked ("This location is not linked to Lightspeed yet") — click Link this location.
Nothing syncs in either direction The Lightspeed connection has stopped working, usually because its access expired. Click Refresh Token if shown; if that fails, disconnect and reconnect the account (Danger zone › Disconnect account, then Connect), then link each location again and check its table mapping. Disconnecting removes Lightspeed access for every location of your company, so plan it outside service.
A seated guest's table doesn't open on the POS Either the 10Seat table isn't mapped to a Lightspeed table, or the reservation was seated without a table. Map the table and make sure every seated reservation has a table assigned.
The reservation was sent, but Lightspeed didn't accept it Lightspeed sometimes accepts the call and then rejects the reservation. Contact 10Seat support — they see Lightspeed's own error message.
A bill is open in Lightspeed but not on our 10Seat floor plan The Lightspeed table isn't mapped. Map it in K-Series floor & table mapping.
A bill is open in Lightspeed with no reservation linked to it The bill was opened before the guest was seated in 10Seat, or on a different table. Seat the party on the matching table in 10Seat; for bills that stay unlinked, contact 10Seat support, who can link a bill to a reservation or turn it into a walk-in.
A bill was closed in Lightspeed but the reservation didn't complete, and no spend was recorded The bill had no linked reservation. Contact 10Seat support if the spend matters for reporting.
Lightspeed reports errors about a business location or table that "doesn't exist" The linked business location or a mapping points to something removed in Lightspeed. Click Refresh on the mapping and remap; if the business location changed, use Change business location.
Updates for one location show up on another location Two 10Seat locations are probably linked to the same Lightspeed business location. Unlink the wrong one.
Sync is slow during busy moments Lightspeed may be limiting the number of requests or having an outage. Sync catches up on its own; if it lasts, contact 10Seat support.
A bill has been open for more than a day Lightspeed never sent a close for it, so the reservation won't complete. Close it in Lightspeed, or contact 10Seat support to close it.
The deposit didn't reach the bill See "What syncs between 10Seat and Lightspeed K-Series" — Lightspeed can refuse deposits while still accepting the reservation.