# Service Appointments (POST)

Contains the error codes and error code messages related with Salesforce Scheduler API for the `service-appointments` (POST) resource.

This table lists HTTP response code descriptions that are unique to this resource.

| HTTP Response Code | Error Code            | Description                                                                                                                                |
| ------------------ | --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| 400                | `INTERNAL_ERROR`      | We couldn't find any resources for your request. Specify a different `schedStartTime` and `schedEndTime` and try again.                    |
| 400                | `INVALID_API_INPUT`   | Only one `assignedResource` can have `isPrimaryResource` set to true. Check the request and try again.                                     |
| 400                | `INVALID_API_INPUT`   | You haven’t enabled the Schedule Appointments using Engagement Channels setting in your org. Contact your Salesforce admin for assistance. |
| 400                | `INSUFFICIENT_ACCESS` | Looks like you don't have access to the `MaxAppointments` field in the TimeSlot object. Your Salesforce admin can help with that.          |
| 400                | `INSUFFICIENT_ACCESS` | Looks like you don't have access to `ServiceAppointment` object. Your Salesforce admin can help with that.                                 |