---
title: "Delete A/B test variant"
method: DELETE
path: "/ab-tests/{abTestId}/variants/{variantId}"
tags: ["A/B Tests"]
---

# Delete A/B test variant

`DELETE /ab-tests/{abTestId}/variants/{variantId}`

Removes a variant from a draft campaign A/B test. The control variant A cannot be deleted, and at least 2 variants must remain.

## Path parameters

- `abTestId` string, required
- `variantId` string, required

## Response `200`

Variant deleted

- object
  - `success` boolean
  - `abTest` ABTest
    - `id` string
    - `companyId` string
    - `campaignId` string, nullable
    - `automationNodeId` string, nullable
    - `name` string, nullable
    - `status` string
    - `testPercentage` integer
    - `testDurationMinutes` integer
    - `winnerCriteria` string
    - `winningVariantId` string, nullable
    - `winnerSelectedAt` string, date-time, nullable
    - `testStartedAt` string, date-time, nullable
    - `testEndsAt` string, date-time, nullable
    - `createdAt` string, date-time
    - `updatedAt` string, date-time
    - `variants` ABTestVariant[]
      - `id` string
      - `variantId` string
      - `abTestId` string
      - `label` string
      - `variantLabel` string
      - `emailId` string
      - `subject` string
      - `previewText` string, nullable
      - `blocks` EmailBlock[]
        - `id` string
        - `type` 'text' | 'html' | 'heading' | 'list' | 'button' | 'spacer' | 'divider' | 'image' | 'columns' | 'conditional-group' | 'card' | 'cta' | 'social' | 'logo' | 'footer' | 'video' | 'product', required
        - `content` string — Content for text, html, and heading-like blocks.
        - `styles` object — Per-block visual styles. For compatibility, style fields such as backgroundColor, backgroundOpacity, borderColor, borderWidth, and borderRadius can also be supplied at the block top level and are normalized into this object.
          - `paddingTop` number
          - `paddingBottom` number
          - `paddingLeft` number
          - `paddingRight` number
          - `backgroundColor` string
          - `backgroundOpacity` number — Background opacity percentage from 0 to 100.
          - `textColor` string
          - `textAlign` 'left' | 'center' | 'right'
          - `borderRadius` number
          - `borderColor` string
          - `borderWidth` number
      - `testSends` integer
      - `testOpens` integer
      - `testClicks` integer
      - `isWinner` boolean
      - `localizations` object[]
      - `createdAt` string, date-time

## Other responses

- `400` — Non-draft test, control variant, or minimum variant count reached
- `401` — Unauthorized
- `404` — A/B test or variant not found
- `500` — Variant could not be deleted

## Changes

- **2026-06-11** `ad2d3114269a` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/sequenzy/apis/sequenzy-api/changes/ab-tests/:abTestId/variants/:variantId/delete.md)

---

[API](https://skmtc.dev/sequenzy/apis/sequenzy-api.md) · [All operations](https://skmtc.dev/sequenzy/apis/sequenzy-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/sequenzy/sequenzy-api/revisions/a7ebcc2a87e4/schema)