---
title: "Set multiple custom-field values atomically"
method: POST
path: "/custom-fields/values/bulk"
tags: ["custom-fields"]
---

# Set multiple custom-field values atomically

`POST /custom-fields/values/bulk`

## Request

- Base URL: `https://api.onplana.com/api`
- URL: `https://api.onplana.com/api/custom-fields/values/bulk`
- Auth: one of:
  - HTTP bearer
  - API key in header `Authorization`

## Headers

- `X-Organization-Id` string, required

## Request body

- object
  - `entityType` 'PROJECT' | 'TASK' | 'PROPOSAL', required
  - `entityId` string, uuid, required
  - `values` object, required: Map of fieldId → value.

## Response `200`

Saved

## Other responses

- `400`: Validation error
- `401`: Unauthorized - missing or invalid JWT
- `402`: Plan gate - feature not available on current plan
- `403`: Forbidden - insufficient role

---

[API](https://skmtc.dev/onplana/apis/onplana-api.md) · [All operations](https://skmtc.dev/onplana/apis/onplana-api/llms.txt) · [OpenAPI document](https://skmtc.dev/onplana/apis/onplana-api/revisions/c3d6c89e9dc8?raw)