---
title: "Post an application event"
method: POST
path: "/workflows/events"
tags: ["Workflows"]
---

# Post an application event

`POST /workflows/events`

## Request

- Base URL: `https://api.poststack.dev`
- URL: `https://api.poststack.dev/workflows/events`
- Auth: one of:
  - HTTP bearer
  - OAuth 2
    - Authorization code: `https://poststack.dev/oauth/authorize`
    - Token URL: `https://poststack.dev/oauth/token`
- TypeScript: <https://skmtc.dev/poststack/apis/poststack-api/docs/workflows/events/post.ts> (a function with typed inputs; its response is checked against the schema)

Enrols the contact into every active `custom` workflow whose event name matches. Check `matched` — an unknown event name is accepted and enrols nobody.

## Request body

- WorkflowEventInput
  - `event` string, required
  - `contact_id` string
  - `email` string, email

## Response `202`

Accepted.

- object
  - `event` string, required
  - `matched` integer, required: Number of workflows the contact was enrolled into.

## Other responses

- `400`: Validation failed — `error` names each offending field (`field: message`).
- `401`: Missing, malformed or unknown credentials (`WWW-Authenticate: Bearer …` is set).
- `403`: The credential lacks the `workflows:manage` scope (body `{ error: "insufficient_scope", required, missing }`), or the team is suspended.
- `404`: Contact not found.
- `429`: Rate limited (300/min). `Retry-After` gives the seconds to wait; `X-RateLimit-*` headers are sent on every response.

## Changes

- **2026-09-30** `4dc1e20989c8`: 15 warning
  - added the new `daily_limit_exceeded` enum value to the `anyOf[#/components/schemas/Error]/code` response property for the response status `403`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `400`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `401`
  - added the new `daily_limit_exceeded` enum value to the `code` response property for the response status `404`
  - …11 more
- **2026-09-29** `ef5b22b98333`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/poststack/apis/poststack-api/changes/workflows/events/post.md)

---

[API](https://skmtc.dev/poststack/apis/poststack-api.md) - [All operations](https://skmtc.dev/poststack/apis/poststack-api/llms.txt) - [OpenAPI document](https://skmtc.dev/poststack/apis/poststack-api/revisions/0d3971e3a670?raw)