> For the complete documentation index, see [llms.txt](https://docs.zapsign.com.br/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zapsign.com.br/zapsign-api/english/webhooks/eventos/signer/authentication_failure.md). # Failed Validation signer\_authentication\_failed This webhook event is triggered when the signer reaches the maximum allowed attempts (3 attempts) to verify their identity using the authentication methods available in ZapSign: **Facial Recognition** and **Identity Validation**. When this notification is received, it means that the signer cannot proceed with the electronic signing process until the client takes action. #### **Possible actions the client can take:** * **Change the authentication method:** Use the [Update Signer ](/zapsign-api/english/signatarios/atualizar-signatario.md)endpoint to change the authentication method to an alternative one (e.g., OTP via SMS or email). * [**Reset validation attempts:** ](/zapsign-api/english/reset-signer-attempts.md)With this endpoint, the signer will have three new attempts to complete the validation. This event allows the client to make quick and efficient decisions to ensure the continuity and security of the electronic signing process. {% hint style="info" %} In the response, the **authentication\_failure\_reason** parameter explains the reason for the validation failure. {% endhint %} ```json { "sandbox": false, "external_id": "", "open_id": 256, "token": "514ca933-f995-443f-b940-7e82ee5f7c5", "name": "Document", "folder_path": "/", "status": "pending", "rejected_reason": null, "lang": "en", "original_file": "https://zapsign.s3.amazonaws.com/dev/2025/3/docs/92b22e27-b091-4398-940d-6d9976ecdbed/b3871a48-2636-4562-9919-e9dae326db55.pdf?AWSAccessKeyId=AKIASUFZJ7JCTI2ZRGWX&Signature=h7Fab%2F%2F1TggGxgbztlXaDcrxHCg%3D&Expires=1742339713", "signed_file": null, "extra_docs": [], "created_through": "web", "deleted": false, "deleted_at": null, "signed_file_only_finished": false, "disable_signer_emails": false, "brand_logo": "", "brand_primary_color": "", "created_at": "2025-03-18T22:12:37.843154Z", "last_update_at": "2025-03-18T22:12:37.843171Z", "created_by": { "email": "silvana@zapsign.com.br" }, "template": null, "signers": [{ "external_id": "", "sign_url": "https://app.zapsign.com.br/verificar/8XX394fa-cXXX48c2-8d50-2935f5XXX363", "token": "821394fa-c7af-48c2-8d50-2935f5f39363", "status": "link-opened", "name": "Silvana Alvarez", "lock_name": false, "email": "email@email.com", "lock_email": false, "hide_email": false, "blank_email": false, "phone_country": "55", "phone_number": "", "lock_phone": false, "hide_phone": false, "blank_phone": true, "times_viewed": 1, "last_view_at": "2025-03-18T22:12:45.255310Z", "signed_at": null, "auth_mode": "assinaturaTela", "qualification": "", "require_selfie_photo": false, "require_document_photo": false, "geo_latitude": null, "geo_longitude": null, "redirect_link": "", "signature_image": null, "visto_image": null, "document_photo_url": "", "document_verse_photo_url": "", "selfie_photo_url": "", "selfie_photo_url2": "", "send_via": "", "resend_attempts": null, "cpf": "", "cnpj": "", "send_automatic_whatsapp_signed_file": null, "liveness_photo_url": "", "selfie_validation_type": "identity-verification-global", "ip": null }], "answers": [], "auto_reminder": 0, "signature_report": null, "tsa_country": null, "use_timestamp": true, "metadata": [], "event_type": "signer_authentication_failed", "unauthenticated_signer": { "external_id": "", "sign_url": "https://app.zapsign.com.br/verificar/8XX394fa-cXXX48c2-8d50-2935f5XXX363", "token": "821394fa-c7af-48c2-8d50-2935f5f39363", "status": "link-opened", "name": "Silvana Alvarez", "lock_name": false, "email": "email@email.com", "lock_email": false, "hide_email": false, "blank_email": false, "phone_country": "55", "phone_number": "", "lock_phone": false, "hide_phone": false, "blank_phone": true, "times_viewed": 1, "last_view_at": "2025-03-18T22:12:45.255310Z", "signed_at": null, "auth_mode": "assinaturaTela", "qualification": "", "require_selfie_photo": false, "require_document_photo": false, "geo_latitude": null, "geo_longitude": null, "redirect_link": "", "signature_image": null, "visto_image": null, "document_photo_url": "", "document_verse_photo_url": "", "selfie_photo_url": "", "selfie_photo_url2": "", "send_via": "", "resend_attempts": null, "cpf": "", "cnpj": "", "send_automatic_whatsapp_signed_file": null, "liveness_photo_url": "", "selfie_validation_type": "identity-verification-global", "ip": null, "max_attempts": 2, "attempts_used": 2, "authentication_failure_reason": "Unsuccessful validation of Silvana Alvarez due to Attempted deceit, device screen used" } } ``` --- # Agent Instructions This documentation is published with GitBook. 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