---
title: "Enroll a contact in a sequence"
method: POST
path: "/automation/sequences/2026-03/enrollments"
tags: ["Basic"]
---

# Enroll a contact in a sequence

`POST /automation/sequences/2026-03/enrollments`

## Request

- Base URL: `https://api.hubapi.com`
- URL: `https://api.hubapi.com/automation/sequences/2026-03/enrollments`
- Auth: one of:
  - HTTP bearer
  - API key in query parameter `hapikey`
  - none

Enroll a contact into a sequence using the specified user ID and sequence details.

## Query parameters

- `userId` string, required

## Request body

- AutomationSequencesPublicSequenceEnrollmentRequest
  - `contactId` string, required: The unique identifier of the contact to be enrolled in the sequence.
  - `senderAliasAddress` string: The alias email address used by the sender when enrolling the contact.
  - `senderEmail` string, required: The email address of the sender enrolling the contact in the sequence.
  - `sequenceId` string, required: The unique identifier of the sequence in which the contact will be enrolled.

## Response `200`

successful operation

- AutomationSequencesPublicSequenceEnrollmentLiteResponse
  - `enrolledAt` string, date-time, required: The date and time when the contact was enrolled in the sequence.
  - `id` string, required: The unique identifier for the sequence enrollment.
  - `toEmail` string, required: The email address of the contact enrolled in the sequence.
  - `updatedAt` string, date-time, required: The date and time when the sequence enrollment was last updated.

## Other responses

- `default`: An error occurred.

## Changes

> 14 revisions in range; 1 not diffed, 2 could not be searched.

- **2026-03-30** `dc2fdad57f7f`: 2 info
  - api tag `Basic` added
  - api tag `Advanced` removed
- **2026-03-25** `62586336cea2`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/hubspot/apis/hubspot-api-specification/changes/automation/sequences/2026-03/enrollments/post.md)

---

[API](https://skmtc.dev/hubspot/apis/hubspot-api-specification.md) - [All operations](https://skmtc.dev/hubspot/apis/hubspot-api-specification/llms.txt) - [OpenAPI document](https://skmtc.dev/hubspot/apis/hubspot-api-specification/revisions/f9c7181056c5?raw)