You might see a notification in your dashboard like this:
This is the OTA warning you that you have sent them a price that might be too low. To find out which room and rate are affected, scroll down to Settings, OTA connections, and when you click through to the affected Channel, click to view the "Sync Out Logs".
Here you'll find an entry with an orange "Warning" Status.
Clicking through under the "Name" column will show us what generated the error.
You can see here that we've sent through £6.50 which is probably a mistake. The channel room ID, rate ID and dates are highlighted here in green but we need to look at the mapping to see which rate and room these are.
This corresponds to our Single Room's Bed & Breakfast pricing for 16 November. Now we can go and correct the issue.