---
schema_version: "1"
id: 901d2d3ba1e287af1695f72cb7ee67d5e95d8d0b98f35cbc76cd01eb57dc519f
title: Appointment Time Slot Calculation for Concurrent Shifts
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/platform/264-0-0/ls_determine_appointment_timeslots_for_concurrent_shifts.md
canonical_url: https://help.salesforce.com/s/articleView?id=platform.ls_determine_appointment_timeslots_for_concurrent_shifts.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: fae67abd1f6505594d95332d709a1320a570141580967e457401ff357e35574f
description: A territory manager or a service resource creates concurrent shifts by defining the maximum number of appointments for the associated topic. If they create overlapping shifts with a different concurrency for each of these shifts, then Salesforce Scheduler selects the maximum number of concurrency for a shift duration and minimum concurrency while determining the overlapping time slots within these shifts.
products:
  - Scheduler
  - Salesforce Platform
release: "264"
---
# Appointment Time Slot Calculation for Concurrent Shifts

A territory manager or a service resource creates concurrent shifts by defining the maximum number of appointments for the associated topic. If they create overlapping shifts with a different concurrency for each of these shifts, then Salesforce Scheduler selects the maximum number of concurrency for a shift duration and minimum concurrency while determining the overlapping time slots within these shifts.

### Required Editions

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small edition"><colgroup><col></colgroup><tbody><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;">Available in: Lightning Experience.</td></tr><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;">Available in: <strong>Enterprise</strong> and <strong>Unlimited</strong> Editions</td></tr></tbody></table>

![Example](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-platform-scheduler-264-0-0-production-enus/0530be2f-891f-4263-a0d7-96ddca56a717/images/icon_example.png)

Example John, a banker, works in the 1 Market St. branch, attends to customers who have queries about wealth management. He creates these three shifts.

   
| Shift Number | Start Time | End Time | Maximum Appointments |
| --- | --- | --- | --- |
| 1 | 9:00 AM | 12:30 PM | 10 |
| 2 | 10:30 AM | 01:00 PM | 20 |
| 3 | 11:00 AM | 12:00 PM | 30 |

Salesforce Scheduler breaks these shifts into smaller durations by considering the maximum number of appointments for overlapping shifts.

   
| Duration | Start Time | End Time | Maximum Appointments |
| --- | --- | --- | --- |
| 1 | 9:00 AM | 10:30 AM | 10 |
| 2 | 10:30 AM | 11:00 AM | 20 |
| 3 | 11:00 AM | 12:00 PM | 30 |
| 4 | 12:00 PM | 1:00 PM | 20 |

In the shifts that John created, the work type duration is 1 hour and the appointment start time interval is 30 minutes. So, here’s how Salesforce Scheduler shows John’s time slot availability.

   
| Time Slot | Start Time | End Time | Maximum Appointments |
| --- | --- | --- | --- |
| 1 | 9:00 AM | 10:00 AM | 10 |
| 2 | 9:30 AM | 10:30 AM | 10 |
| 3 | 10:00 AM | 11:00 AM | 10 |
| 4 | 10:30 AM | 11:30 AM | 20 |
| 5 | 11:00 AM | 12:00 PM | 30 |
| 6 | 11:30 AM | 12:30 PM | 20 |
| 7 | 12:00 PM | 1:00 PM | 20 |

![Determine Appointment Time Slots for Concurrent Shifts](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-platform-scheduler-264-0-0-production-enus/0530be2f-891f-4263-a0d7-96ddca56a717/scheduler/images/ls_determine_time_slots_for_concurrent_shifts.jpg)