Define the preparation requirement
Lead time is the advance notice needed before an appointment begins. It is different from the preparation buffer around the appointment itself. A fictional service may need materials prepared a day earlier even though the room takes only ten minutes to set up. Write both requirements separately. Removing advance notice to display a same-day slot does not make the materials or an on-call specialist available in time.
Decide where exceptions belong
Trafft documents general booking settings and service-level overrides for relevant timing rules. Use the most specific rule that matches the actual service, then record why it differs from the default. Avoid a collection of undocumented exceptions that only one administrator understands. If urgent appointments require a phone review, say so clearly rather than pretending the same instant-booking process covers both routine and exceptional requests.
Test immediately around the cutoff
Use fictional dates and calculate a request just before and just after the minimum-notice boundary. Include the correct business timezone in your calculation. Then check a service that intentionally has a different rule. These are proposed acceptance cases, not evidence that a product has passed them. A successful booking well in advance does not establish whether the cutoff works correctly at the edge.
Keep the promise consistent
The website, confirmation wording and staff process should agree about how much notice is required. If staff sometimes approve an exception, distinguish that assisted decision from the automatic availability rule. Do not advertise an unconditional last-minute service merely because the software has a manual override. Review the cutoff when staffing or preparation changes, and preserve existing customer commitments while deciding how the new rule applies to future requests.
Sources used for this page
These records support the facts and comparisons above. Merchant-controlled records are labelled so you can separate product claims from independent evidence.
- Trafft booking settings — Merchant documentation · trafft.com · Merchant-controlled · checked 2026-09-23