# Change Appointment Time

A time slot represents a period in a day when an appointment can be scheduled.

1. Create a page to show the available time slots for the resource associated with the appointment.

2. Make a POST request on the [`getAppointmentSlots`](https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/requests_ls_getappointmentslots.htm) REST API by passing the required `workTypeGroupId` or `workTypeId` parameter along with the .`territoryId` parameter.

   **Resource URI**

   ```nolang
   https://yourInstance.salesforce.com/services/data/v68.0/scheduling/getAppointmentSlots
   ```

   **Sample Request**

   Using the `WorkTypeId` parameter.

   ```nolang
   {
     "workType": {
       "id": "08qS70000004DQsIAM"
     },
     "territoryIds": [
       "0HhS700000001DYKAY"
     ],
     "requiredResourceIds": [
       "0HnS700000002jAKAQ"
     ],
     "accountId": "001S7000001pFlJIAU",
     "schedulingPolicyId": "2F0VrRM0000004CUV",
     "engagementChannelTypeIds": [
       "0eFS70000004CGFMA2"
     ]
   }
   ```

   Using the `WorkTypeGroupId` parameter.

   ```nolang
   {
     "workTypeGroupId": "0VS2x0000008ZotGAE",
     "accountId": "001S7000001pFlJIAU",
     "schedulingPolicyId": "2F0VrRM0000004CUV",
     "territoryIds": [
       "0HhS700000001DYKAY"
     ],
     "requiredResourceIds": [
       "0HnS700000002jAKAQ"
     ],
     "engagementChannelTypeIds": [
       "0eFS70000004CGFMA2"
     ]
   }
   ```

   **Sample Response**

   The API returns the available time slots for a resource.

   ```nolang
   {
     "timeSlots" : [ {
       "endTime" : "2023-03-26T17:55:00.000+0000",
       "remainingAppointments" : 1,
       "startTime" : "2023-03-26T17:30:00.000+0000",
       "territoryId" : "0HhS700000001DYKAY"
     }, {
       "endTime" : "2023-03-30T16:55:00.000+0000",
       "remainingAppointments" : 1,
       "startTime" : "2023-03-30T16:30:00.000+0000",
       "territoryId" : "0HhS700000001DYKAY"
     }, {
       "endTime" : "2023-04-02T16:55:00.000+0000",
       "remainingAppointments" : 1,
       "startTime" : "2023-04-02T16:30:00.000+0000",
       "territoryId" : "0HhS700000001DYKAY"
     }, {
       "endTime" : "2023-04-04T18:25:00.000+0000",
       "remainingAppointments" : 1,
       "startTime" : "2023-04-04T18:00:00.000+0000",
       "territoryId" : "0HhS700000001DYKAY"
     } ]
   }
   ```

3. Parse the JSON response, and show the available time slots on the page.

Your users can select a time slot for the appointment from the page.