Field Service Developer Guide
Winter '27 preview (API version 68.0)
Summer '26 (API version 67.0)
Spring '26 (API version 66.0)
Winter '26 (API version 65.0)
Summer '25 (API version 64.0)
Spring '25 (API version 63.0)
Winter '25 (API version 62.0)
Summer '24 (API version 61.0)
Spring '24 (API version 60.0)
Winter '24 (API version 59.0)
Summer '23 (API version 58.0)
Spring '23 (API version 57.0)
Winter '23 (API version 56.0)
Summer '22 (API version 55.0)
Spring '22 (API version 54.0)
Winter '22 (API version 53.0)
Summer '21 (API version 52.0)
Spring '21 (API version 51.0)
Winter '21 (API version 50.0)
Summer '20 (API version 49.0)
Spring '20 (API version 48.0)
Winter '20 (API version 47.0)
Summer '19 (API version 46.0)
Spring '19 (API version 45.0)
Winter '19 (API version 44.0)
Summer '18 (API version 43.0)
Spring '18 (API version 42.0)
Get Ready to Develop with Field Service
API End-of-Life Policy
Field Service Custom Triggers
Field Service Apex Reference
The Field Service Apex Reference provides the Field Service (FSL) namespace for
programmatic access to Field Service functionality and the ConnectApi namespace for accessing
Connect REST API data and building custom experiences in Salesforce.
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ConnectApi Namespace
The ConnectApi namespace (also called Connect in Apex) provides classes for accessing the same data available in Connect REST API. Use Connect in Apex to create custom experiences in Salesforce. -
FSL Apex Namespace
The Field Service (FSL) namespace contains all classes, methods, Visualforce pages, and custom objects within the Field Service managed package. To allow access to namespace elements, assign the FSL custom permission set that's appropriate for the user's persona. For example, to allow a user to book appointments, assign the FSL Agent custom permission set.