There are a few reasons a duplicate OTA reservation can appear in myfrontdesk, below are some of the most common causes.
1. Incorrect reservation source for a manually entered reservation
When a new OTA reservation is imported from myallocator, myfrontdesk checks existing reservations from that OTA to make sure the incoming reservation is not a duplicate. It does this by checking all reservation IDs currently present for that OTA source.
If a manually entered reservation has an incorrect source (for instance as "OLD PMS" instead of "Agoda"), then myfrontdesk will not be able to tell that they are the same reservation and the update from the OTA will be seen as a seperate, new reservation. This results in the creation of what appears to be a duplicate reservation.
To prevent this issue or correct it after it has occurred, make sure all manually-added OTA reservations have the correct source assigned to them.
2. Reservation was manually added multiple times
If a reservation is manually added multiple times with either an incorrect source or no reservation ID, then there will be duplicate or multiple versions of that reservation present. This often occurs when a user does not check whether a reservation is already present or incorrectly formats a batch csv reservation import.