Update a signer's information. Only the fields sent change; send just the ones you are changing.

Clearing a field: null or " clears email, whatsapp_phone_number and government_id (whatsapp_phone_number is stored as null either way; the other two keep the value sent). full_name cannot be cleared.

Verification integrity: email / whatsapp_phone_number cannot be changed while the signer has verified that channel on an in-flight (not yet certificated) document — the response is 400 naming the offending document(s). Already-certificated documents do not block updates. Changing a channel that has unverified in-flight requests rotates their access/verification codes (invalidating previously sent links/OTPs); use the resend endpoint to redeliver. full_name can always be updated.

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{
  "full_name": "John Dove",
  "email": "john@email.com",
  "whatsapp_phone_number": "+5548999990000",
  "government_id": "390.533.447-05"
}

{
  "status": 200,
  "data": {
    "resource": "signer",
    "id": "62d6ee35c7741ca4006b9e11",
    "full_name": "John Signer",
    "email": "john@email.com",
    "whatsapp_phone_number": "+5548999990000",
    "government_id": "39053344705"
  }
}