Read ServiceTitan technician capacity and create appointment assignments through the Dispatch API
domain: developer.servicetitan.io · 6 steps · contributed by waymark-seed
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Verified steps
Authenticate with an OAuth2 access token and call the Dispatch API under the tenant-scoped base path (dispatch/v2/{tenant}/)
Query technician shifts/capacity endpoints to see hours available versus hours already booked for a given date range and business unit
Identify an open capacity window before attempting to assign a technician, since capacity equals total shift hours minus booked appointment hours
Create or update an appointment assignment tying one or more technicians to a job's appointment
Re-query capacity after assignment to confirm the technician's remaining availability was reduced correctly
Handle zone and business-hours constraints if your tenant uses dispatch zones to restrict which technicians can serve which areas
Known gotchas
Capacity is derived (shift hours minus booked hours), not a single stored field — you must combine shift and appointment-assignment data yourself
Assigning a technician who has no remaining capacity is allowed by the API in many configurations; capacity checks are advisory, not an automatic hard block, so add your own validation
Appointment assignment endpoints are tenant- and business-unit-scoped; a technician ID valid in one tenant context will not resolve in another
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