FieldInput

Pre-fill a field value on a document being sent. Used for both sender fields (senderFields) and participant fields (participantFields) in DocumentSendSettingsInput.

Fields

Field	Type	Required	Default	Description
id	ID!	Yes	—	UUID of the original template element
value	String	No	—	Value to pre-fill
label	String	No	—	Field label
signer	Int	No	—	Signer index for this field
elementType	String	No	—	Field type
roleId	String	No	—	Assign to a specific role (e.g. convert sender field to signer field)

Validation Rules

• id must be a base64-encoded element ID that decodes to ele followed by a UUID.
• roleId, when supplied, must be a base64-encoded role ID that decodes to rol followed by a UUID.

Example

senderFields: [
  { id: "ZWxlbWVudC0x", value: "Acme Corp", label: "Company Name" }
  { id: "ZWxlbWVudC0y", value: "2025-07-01", label: "Start Date" }
]

Related

• DocumentSendSettingsInput — parent input
• TemplateElement — the template fields being pre-filled