> ## Documentation Index
> Fetch the complete documentation index at: https://developers.myhero.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Fill in a field

> Public, with a signature-guest-token.

Saves the recipient's value for one of their fields, checked as its column checks values.

An empty value clears it.

Kept on the request until everyone has signed.



## OpenAPI

````yaml put /signature/guest/requests/{requestId}/fields/{fieldId}
openapi: 3.1.0
info:
  title: HERO API
  version: current
  description: |-
    The HERO REST API.

    See https://developers.myhero.so for the rendered docs.
servers:
  - url: https://app.myhero.so
security: []
paths:
  /signature/guest/requests/{requestId}/fields/{fieldId}:
    put:
      tags:
        - Signatures
      summary: Fill in a field
      description: >-
        Public, with a signature-guest-token.


        Saves the recipient's value for one of their fields, checked as its
        column checks values.


        An empty value clears it.


        Kept on the request until everyone has signed.
      operationId: fillSignatureGuestField
      parameters:
        - schema:
            type: string
            minLength: 1
          required: true
          name: requestId
          in: path
        - schema:
            type: string
            minLength: 1
          required: true
          name: fieldId
          in: path
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                value: {}
      responses:
        '200':
          description: 200 response
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type:
                      - object
                      - 'null'
                    properties: {}
                    additionalProperties: {}
                required:
                  - data
        '400':
          description: 400 response
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                    description: |-
                      Error class name (e.g.

                      ValidationError, NotFound)
                  message:
                    type: string
                    description: Human-readable error message
                  details:
                    type: array
                    items: {}
                required:
                  - error
                  - message
        '403':
          description: 403 response
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                    description: |-
                      Error class name (e.g.

                      ValidationError, NotFound)
                  message:
                    type: string
                    description: Human-readable error message
                  details:
                    type: array
                    items: {}
                required:
                  - error
                  - message
      security: []

````

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