1. Confirm the Expedia change is final before editing the PMS.
2. Compare the current reservation with the PMS field by field.
3. Keep the original Expedia itinerary ID attached to one hotel record.
4. Protect rooms, price, and payment instructions affected by the change.
5. Correct the original booking once, then verify both systems.
An Expedia reservation modification not syncing is different from a new booking that never reached the PMS. The hotel already has a reservation, but the guest and front desk may be looking at different dates, room types, occupancy, prices, or cancellation terms.
The safest response is to preserve one booking record and bring it up to date. Do not cancel and recreate the stay simply because the original record is old. That can separate the reservation from its itinerary ID, payment instructions, guest messages, and change history.
Use the following six checks in order. They are designed for a manager or front-desk lead who needs a clear operational decision, not a technical diagnosis.
Check 1: Confirm the Change Is Final in Partner Central
Open the reservation in the correct Expedia Partner Central property. Search by itinerary ID and confirm the current status, last modification time, and exact stay now shown.
A guest request is not always a completed change. If the hotel must accept or decline it, follow the property's availability and approval rules first. If Partner Central still shows the original booking, do not update the PMS from a guest email or screenshot alone.
When Partner Central shows the new dates, room, guest count, price, or cancellation, use that current reservation as the comparison point. Record the time and time zone so the next person can distinguish the latest version from an older notification.
Check 2: Identify Exactly What Changed
Compare the current Expedia reservation with the existing PMS record. Review arrival, departure, room type, number of rooms, adults and children, guest name, total and nightly price, taxes, cancellation status, special requests, and payment instructions.
Mark only the fields that differ. A date extension affects more inventory nights. A room-type change may require a new room assignment. A lower guest count may change taxes or included meals. A cancellation releases inventory but can still leave a fee to record.
Avoid treating every modification as a full replacement. The itinerary ID should remain the same unless Expedia created a genuinely separate booking.
Smart Order can help the team compare the Expedia reservation reference with the PMS booking and affected room availability in one working flow. The manager can see which detail changed, assign one person to correct it, and avoid a second reservation being created during the handover.
Keep Reservation Changes Tied to One Hotel Record
Use Smart Order to review OTA reservations and room availability before making a manual correction.
Check 3: Search the PMS for the Latest Version
Search the full PMS by itinerary ID before editing anything. Then search by guest surname, old and new arrival dates, booking date, and room type. Include modified, cancelled, unassigned, archived, and duplicate records.
The arrivals list may still use an old date filter, so a correctly updated booking can appear to be missing. A date change may also move the reservation to another day's arrivals report without changing its core record.
If two PMS records contain the same itinerary ID, stop. Do not update both. Determine which record holds the correct payment, deposit, room assignment, and change history, then preserve that one according to the hotel's duplicate-handling procedure.
Check 4: Review the Expedia Connection Status
Open the Expedia connection area in the PMS or channel manager and look for hotel-facing warnings around the modification time. Check whether Expedia is active, the reservation is waiting for attention, or the affected room and rate plan are still connected.
Do not remap a live room or rate plan to force one change through. A rushed mapping change can redirect future bookings or update the wrong inventory pool.
If the original booking arrived by email or was entered manually, later changes may also need manual handling. Note how the first reservation reached the hotel so support can follow the correct record rather than searching for an automatic update that was never expected.
Check 5: Protect Inventory, Price, and Payment
Before correcting the PMS, calculate what the modification changes for the hotel.
- For new or extended dates, confirm a room is available for every added night and place one documented temporary hold if needed.
- For shortened dates or cancellation, release inventory only after confirming the PMS has not already returned it.
- For a room-type change, move the reservation to the correct inventory pool without leaving the old room blocked.
- For a price change, preserve the current Expedia total and do not rebuild the rate from today's public price.
- For payment changes, confirm whether the booking is Expedia Collect or Hotel Collect before charging, refunding, or changing a deposit.
Escalate immediately when the change affects the last room, a same-day arrival, a prepaid amount, a cancellation fee, or several reservations at once.
Check 6: Correct the Original Record and Verify It
If the automatic update can be safely recovered, request one recovery and wait for the result. Repeated attempts can create duplicate notes, room movements, or reservation records.
If the hotel's procedure requires a manual correction, edit the original PMS reservation. Keep the Expedia itinerary ID, source, guest details, payment notes, and change history. Add an internal note stating which fields were corrected, the Partner Central modification time, who approved the action, and whether a later automatic update may still arrive.
Then compare both systems again. Confirm the same status, dates, room type, occupancy, price, payment responsibility, and inventory for every affected night. Search the PMS once more by itinerary ID to prove that only one active record remains.
The case is not closed merely because the arrivals list looks correct. It is closed when the reservation, room availability, and money instructions all agree.
What to Give Support When the Change Is Still Missing
Provide the itinerary ID, property name and ID, modification time with time zone, old and new reservation details, screenshots of Partner Central and the PMS, and any visible connection warning. State whether the original booking arrived automatically, by email, or by manual entry.
Also list any temporary room hold or manual correction already made. Ask support to confirm the latest reservation version and the single safe recovery action. This prevents another team from repeating the same correction without seeing the hotel's work.
Frequently Asked Questions
Should the hotel create a new PMS booking for the changed stay?
Usually no. Update the original record so the itinerary ID, payment instructions, guest history, and inventory movement stay together.
What if the guest shows a new itinerary but Partner Central does not?
Treat the change as unconfirmed until the current reservation in Partner Central supports it. Protect a room temporarily if arrival is close, but do not promise the change prematurely.
Can a date change cause an overbooking?
Yes. Added nights may have no availability, while removed nights may remain blocked if the PMS keeps the old dates.
When should a manager take over?
Escalate for same-day arrivals, last-room situations, payment uncertainty, cancellation fees, duplicate records, or several affected Expedia reservations.
