---
title: "Trigger Send Plan Autoscale"
method: POST
path: "/api/internal/outreach/send-plan-autoscale"
tags: ["OutreachInternal"]
---

# Trigger Send Plan Autoscale

`POST /api/internal/outreach/send-plan-autoscale`

T-1185: demand-driven scheduler tick for the send-plan SEND stage —
counts the due send frontier and tops Prefect up with flow runs to the
demand-derived target (per-run knobs fixed; the deployment's
concurrency_limit is the hard cap). External k8s CronJob posts here
every minute. Full contract: ``api/outreach/send_plan/autoscaler.py``.
Always answers 2xx so the CronJob's ``curl -f`` stays green — a broken
tick reports its error and the next minute retries.

## Response `200`

Successful Response

- unknown

---

[API](https://skmtc.dev/explee/apis/explee-api.md) · [All operations](https://skmtc.dev/explee/apis/explee-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/explee/explee-api/revisions/f169bc6e9447/schema)