How to freeze scheduling and charting before an EHR cutover
Freeze scheduling and charting before an EHR cutover by setting a freeze window, stopping new appointments and notes in the old EHR at that time, draining the remaining schedule, and naming one owner who clocks the freeze and tells staff when it starts.
- A freeze window is the set period when staff stop entering new work in the old EHR so the final export stays complete.
- Stop new appointments, notes, charts and most edits in the old system when the freeze starts; keep the system available for read-only lookups as planned.
- Drain the schedule so visits after the freeze land in the new EHR, and name one person who owns the freeze clock and staff messages.
What is a freeze window?
A freeze window is the agreed stretch of time around cutover when the practice stops putting new work into the old EHR. It starts at a clock time you publish to staff and ends when the new system is open for day-to-day work. It is the practical side of the data freeze you set when you choose an EHR cutover date.
What should you stop entering in the old EHR?
When the freeze starts, staff should stop:
- Booking or moving appointments in the old calendar
- Writing or signing new clinical notes in the old chart
- Creating new client charts or changing demographics that the migration already exported
- Posting new charges or payments that belong after cutover, unless billing lead has a written exception for open claims
Keep the old system open for read-only lookups if your parallel run plan calls for it. Avoid silent edits after the freeze; they will not be in the final export.
How do you drain the schedule before the freeze?
Work the calendar backward from the freeze time. Move or rebook visits that fall after the freeze into the new EHR once it is ready, or hold them until go-live with a clear front-desk script. Leave visits that finish before the freeze in the old system so notes and charges can close there. How to move appointments between EHRs covers past and future appointments and recurring series.
Who owns the freeze clock?
Name one owner (usually the project owner) who:
- Publishes the freeze start time and go-live day
- Confirms the final export has started or finished as planned
- Sends the "freeze is on" and "new EHR is open" messages
- Decides any one-off exceptions in writing with the clinical or billing lead
Do not leave the freeze time as a group chat guess. Put the owner and times on the EHR migration checklist.
How do you communicate the freeze to staff?
Step 1: Lock the freeze time with the cutover date
Confirm the cutover date and the exact freeze clock time with the project owner, clinical lead and billing lead. Write both on the checklist.
Step 2: Tell staff early, then again near the day
When the date is set, tell every role the freeze time and what stops in the old EHR. Shortly before cutover, repeat the time and the finish-up list from how to prepare staff for an EHR cutover.
Step 3: Drain the schedule and close open work
Front desk drains post-freeze visits. Clinicians sign open notes. Billing posts what belongs before the freeze. Track unfinished items with the owner.
Step 4: Announce when the freeze starts
At the freeze time, send a short message: the old EHR is closed for new scheduling and charting, who to call with questions, and when the new EHR opens.
Step 5: Announce when the new EHR is open
When go-live starts, tell staff the new system is the only place for new appointments, notes and claims. Point them to staff users and permissions if logins are still being handed out.
Step 6: Keep a written log of exceptions
If anyone must edit the old system after the freeze, log who, what and why, and say whether that change will be re-entered in the new EHR by hand.
What to watch for
- Appointments still landing in the old calendar after the freeze time.
- Notes signed in the old EHR after the final export started.
- Staff who never saw the freeze message and keep working in the old system.
- No named owner for the freeze clock.
Frequently asked questions
How long should a freeze window last?
Long enough to finish the final export and open the new EHR for the first day of work. Keep it as short as your cutover plan allows so fewer visits sit in the gap.
Can billing keep working in the old EHR during the freeze?
Only for work that belongs before the freeze, such as closing open claims, and only if the billing lead and project owner agree in writing. New sessions after go-live belong in the new system.
What if a clinician must add a note after the freeze starts?
Log the exception, write the note in the system the owner names (usually the new EHR once it is open), and avoid changing the old chart after the final export without a plan to re-enter the change.
Does Ferry set the freeze window for you?
Ferry works to the freeze time and cutover plan you set with your team. Your project owner still owns the clock and the staff messages.
For the full project from inventory to archive, see the EHR data migration guide.
How Ferry helps
Ferry migrates data between behavioral health EHRs at a fixed price, with a reconciliation report for every record type. Get a migration quote.