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title: ConnectApi Namespace
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canonical_url: https://developer.salesforce.com/docs/service/salesforce-scheduler-dev-guide/guide/salesforce-scheduler-connect-api-namespace.html
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---

# ConnectApi Namespace

The `ConnectApi` namespace (also called Connect in Apex) provides classes creating and updating service appointments.

The following are the classes and the interface in the `ConnectApi` namespace.

## Class

-   [LightningScheduler Class](https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_ConnectAPI_LightningScheduler_static_methods.htm) — Create and update service appointments.

## Input Classes

-   [ConnectApi.CreateServiceAppointmentInput](https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_connectapi_input_create_service_appointment.htm) — Contains information to create a service appointment.
-   [ConnectApi.ExtendedFieldInput](https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_connectapi_input_extended_field.htm) — Contains information about the extended field.
-   [ConnectApi.LeadInput](https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_connectapi_input_lead.htm) — Contains information about a lead or guest user.
-   [ConnectApi.ServiceAppointmentInput](https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_connectapi_input_service_appointment.htm) — Contains information about the service appointment.

## Output Classes

-   [ConnectApi.ServiceAppointmentOutput](https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_connectapi_output_service_appointment_output.htm) — Output of the create service appointment request.
-   [ConnectApi.ServiceAppointmentResult](https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_connectapi_output_service_appointment_result.htm) — Contains result of the service appointment.