> For the complete documentation index, see [llms.txt](https://learn.withessential.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.withessential.com/customers-and-work/scheduling/scheduling-rules-for-past-and-active-visits.md). # Scheduling rules for past and active visits Some visits cannot be scheduled or edited because they are already in the past or field work has started. ## Date rules Visits cannot be scheduled for a date before today. If a visit needs historical correction, coordinate with the office or support instead of trying to place it on a past date. ## Locked visits A visit scheduled before today cannot be edited from scheduling. By default, if a technician has clocked in to a current-day or future visit, the visit's date, time, duration, timing type, and clocked technician assignments are locked to protect the field record and time tracking. You can still edit non-scheduling details and add another technician to the current-day visit. Open the visit's edit form and click **Edit Technicians**. A technician who already has clock events cannot be removed, but technicians without clock events can still be added or removed. Administrators can enable **Settings > Scheduling > Features > Enable re-scheduling after technician clock-in**. With it enabled, clock-in and clock-out history no longer block rescheduling a same-day or future visit: office users can change timing, duration, timing type, assignments, or move the visit to the Backlog. It does not unlock past-day visits, deletion, or reverting a visit to draft. If a past visit needs historical correction, coordinate with the office or support. If the work needs a new appointment, create another visit or use the job/task workflow to communicate the next step. > **Where to find it:** Scheduling page ## Related guides * [Schedule, reschedule, or reassign a visit](/customers-and-work/scheduling/schedule-reschedule-or-reassign-a-visit.md) * [Deleting a scheduled visit is permanent](/customers-and-work/scheduling/deleting-a-scheduled-visit-is-permanent.md) * [Add a visit summary on mobile](/field-operations/mobile/add-a-visit-summary.md) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://learn.withessential.com/customers-and-work/scheduling/scheduling-rules-for-past-and-active-visits.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.