---
title: "Create a Submittal Attachment"
method: POST
path: "/api/v3/projects/{project_id}/submittal_attachments"
tags: ["submittal attachment"]
---

# Create a Submittal Attachment

`POST /api/v3/projects/{project_id}/submittal_attachments`

## Path parameters

- `project_id` string, uuid, required

## Headers

- `Fieldwire-Version` string, date, required

## Request body

- SubmittalAttachmentCreateInput — Schema for creating submittal attachment
  - `name` string — Name of the file. Required when attachment_id is not provided.
  - `file_url` string — URL of the attachment. Required when attachment_id is not provided.
  - `submittal_id` string, uuid, required — The Submittal on which the attachment will exist.
  - `last_editor_user_id` integer, required — ID of the user who last modified this entity
  - `creator_user_id` integer, required — ID of the user who created this entity
  - `file_size` integer, nullable — Size of file
  - `original_url` string, nullable — URL of the file originally uploaded by the user
  - `attachment_id` string, uuid, nullable — The ID of the existing attachment.
  - `submittal_response_id` string, uuid, nullable, required — The ID of the existing response.

## Response `201`

Successful response

- SubmittalAttachment — Entity that encapsulates an attachment on a Submittal.
  - `id` string, uuid, required — ID of the Submittal Attachment object.
  - `name` string — Name of the file.
  - `file_url` string — URL of the potentially processed file
  - `kind` 'file', required — Kind of the attachment. Currently it only supports file type.
  - `submittal_id` string, uuid, required — The Submittal on which the attachment will exist.
  - `submittal_action_id` string, uuid, nullable — The Submittal Action on which the attachment will exist.
  - `project_id` string, uuid, required — ID of the project this entity belongs to
  - `last_editor_user_id` integer, required — ID of the user who last modified this entity
  - `creator_user_id` integer, required — ID of the user who created this entity
  - `created_at` string, date-time, required — Time when the server created the entity
  - `updated_at` string, date-time, required — Time when the server last updated the entity
  - `resolved_conflict` boolean, nullable, required — Specifies if PUT/PATCH request was rejected - do not store this field!
  - `file_size` integer, nullable — Size of file
  - `original_url` string, nullable — URL of the file originally uploaded by the user
  - `flattened_file_url` string, nullable — URL of the file that has the markups flattened
  - `thumb_url` string, nullable — Thumb URL of the file
  - `attachment_id` string, uuid, nullable — The ID of the existing attachment.
  - `submittal_response_id` string, uuid, nullable — The ID of the existing response.
  - `deleted_at` string, date-time, nullable — Time the server deleted the entity
  - `device_created_at` string, date-time — Time when the device created the entity
  - `device_updated_at` string, date-time — Time when the device last updated the entity

## Other responses

- `422` — Unsuccessful response when conditionally required params are missing

---

[API](https://skmtc.dev/fieldwire/apis/fieldwire-super-api.md) · [All operations](https://skmtc.dev/fieldwire/apis/fieldwire-super-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/fieldwire/fieldwire-super-api/revisions/66ee1c20b92d/schema)