How to protect existing appointments when working hours change

Changing working hours should affect which times clients can choose next, not erase commitments you have already accepted. Review confirmed appointments first, pick a clear transition date and resolve only the visits that genuinely conflict with the new schedule. Then update availability and test what a client can book. This order keeps the calendar honest without treating a settings change as permission to move people who already planned around an agreed time.

Separate future availability from existing commitments

Working hours describe when you intend to accept new appointments. A confirmed booking is a specific agreement with a client. Put those two ideas on separate lines before editing anything. Shortening Friday from 19:00 to 17:00 should stop later Fridays from being offered, but it does not answer what to do with a client already booked at 18:00 next week.

Use a simple rule: settings control future choices; confirmed records require an individual decision. This prevents two opposite mistakes. You will not leave unwanted time open just because one old booking exists, and you will not assume a new schedule silently cancels or moves that booking. In KLIOSO, working hours help shape available starts while appointments remain calendar records. Review both views together, but change each for its own reason.

Map every appointment affected by the change

Define the proposed hours, then inspect the calendar from today through the last confirmed booking. Look beyond start times. A 16:30 service lasting ninety minutes conflicts with a new 17:00 closing time even though it begins before closing. Include ordinary finishing and cleanup where they are part of the reserved duration.

Create a short review list for each affected day:

• appointments starting before the new opening time;
• visits ending after the new closing time;
• bookings crossing a newly added break;
• unusually long services near the boundary;
• manually agreed appointments that may use different details.

Do not contact anyone yet. First distinguish real conflicts from appointments that merely look close to the boundary. The list turns a vague schedule change into a finite set of decisions.

Choose a transition date you can explain

A clean transition date reduces exceptions. If no appointment conflicts, the new hours can begin on the first suitable week. If several clients are already booked, either honor those isolated visits outside the new hours or start the new schedule after them. Both choices are valid when they are deliberate.

Consider four factors before fixing the date:

• how many confirmed bookings fall outside the proposal;
• whether the change is permanent or temporary;
• whether childcare, travel or premises access makes exceptions impossible;
• how far ahead clients normally reserve.

Avoid a rolling change that is different for every client unless necessary. Write the effective date in your own plan, then use it consistently when answering questions. A client should hear one understandable rule, not discover an improvised calendar one message at a time.

Contact clients only when a conflict is real

An unchanged appointment does not need an alarming announcement. Contact the affected client only after you know the exact problem and the alternatives you can genuinely offer. State the booked service, date and time, explain briefly that your working hours are changing, and acknowledge that the original time was already confirmed.

Offer two or three concrete options rather than asking an open-ended “when are you free?” Keep the original booking in place until the client agrees to a replacement. If an exception is possible and less disruptive, honoring the existing time may be the most professional solution. Never change the time first and notify later. Record the agreed result in the appointment so the calendar, client details and future conversation all refer to the same commitment.

Update the schedule in one controlled pass

Once conflicts have decisions, update the working hours rather than making scattered changes across messages, notes and memory. Check each weekday, opening and closing time, breaks, days off and any date-specific exception. A permanent weekly pattern and a one-day closure solve different problems, so use the setting that matches the real change.

During the update:

• keep confirmed appointments visible in the calendar;
• record every client-approved move immediately;
• avoid deleting a booking just to make the view look tidy;
• add a specific exception when one day differs from the new pattern;
• compare the saved hours with the transition date.

KLIOSO uses calendar settings and occupied time to calculate bookable starts. Accurate inputs matter because a clean interface cannot repair a contradictory schedule.

Test the new availability at its boundaries

Do not judge the change only by looking at the settings screen. Open the public booking path as a client and test several service durations. Check the first possible start, the last one that can finish, times around breaks and a day containing an existing appointment. A long service should disappear from a gap where it cannot fit even when a shorter service remains possible.

Test at least these cases:

• the first day under the new schedule;
• a day with a booking outside regular hours that you chose to honor;
• the new closing boundary with both short and long services;
• any new day off or mid-day break;
• the same weekday in a later, otherwise empty week.

Remove any test booking afterward. The goal is to prove that future choices changed while existing commitments stayed understandable.

Review the first two weeks after the change

Schedule changes can reveal habits that settings alone cannot show. For the first two weeks, notice whether clients ask about missing times, whether staff or family commitments still collide with the new hours, and whether appointments repeatedly finish beyond closing. These signals may indicate a communication problem, an unrealistic service duration or a schedule that needs one more adjustment.

Keep the review narrow. Do not change opening hours, service durations and booking rules all at once unless a clear error requires it. Otherwise you will not know which change fixed the problem. Compare booked times with the new pattern, note any exception you honored, and decide on one correction at a fixed review point. Stability helps clients learn the new rhythm and helps you judge it fairly.

The key point

Protect existing appointments by treating them as commitments, not as side effects of a settings change. Audit the calendar before editing hours, choose a clear transition date and contact only clients with genuine conflicts. Keep each original booking until an alternative is agreed, record every decision in one calendar and then test the public availability at opening, closing and break boundaries. A careful change closes unwanted future time, keeps the new pattern understandable and preserves the trust already attached to confirmed visits.