Update Document Signer
Headers
{{tenant_key_name}}
Request
This endpoint expects a multipart form.
is_required
Optional: Required flag - boolean
signer_role
Optional: Signer role - in: CUSTOMER|TENANT_USER|EXTERNAL_THIRD_PARTY|WITNESS
signer_index
Optional: Signer ordinal - integer >= 0
display_label
Optional: Display label - max 255 chars
witnesses_signer_id
Optional: Witness target signer UUID - required_if signer_role=WITNESS - prohibited_unless signer_role=WITNESS
Response
Successful response

