---
title: "Create an end user entity attribute"
method: POST
path: "/api/end_user_entities/{entity_heron_id}/attributes"
tags: ["EndUserEntity"]
---

# Create an end user entity attribute

`POST /api/end_user_entities/{entity_heron_id}/attributes`

## Path parameters

- `entity_heron_id` string, required

## Request body

- CreateEndUserEntityAttributeSchema
  - `attribute_description` string
  - `attribute_name` string, required
  - `attribute_type` 'float' | 'int' | 'decimal' | 'string' | 'date' | 'datetime' | 'bool'
  - `display_order` integer
  - `is_dedupe_key` boolean
  - `reconciliation_config` object
  - `reconciliation_strategy` 'sort_order' | 'llm' | 'comparison' | 'concatenate_lists'

## Response `200`

OK

- EndUserEntityAttributeSchema
  - `attribute_description` string
  - `attribute_name` string
  - `attribute_type` 'float' | 'int' | 'decimal' | 'string' | 'date' | 'datetime' | 'bool'
  - `display_order` integer
  - `heron_id` string
  - `is_dedupe_key` boolean
  - `reconciliation_config` object
  - `reconciliation_strategy` 'sort_order' | 'llm' | 'comparison' | 'concatenate_lists'

---

[API](https://skmtc.dev/herondata/apis/heron-data-api.md) · [All operations](https://skmtc.dev/herondata/apis/heron-data-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/herondata/heron-data-api/revisions/f2e441edece2/schema)