Workflow error troubleshooting

Is the AI Agent calling any tools, and are you utilizing any dynamic values to be filled? The error message suggests that there are missing values that were expected but appear to be empty.

Perhaps providing more screenshots or a detailed explanation would be most helpful.

It appears you're using an AI Agent. Could you please show it to me? I can assist you in resolving your issue!

image429×262 16.1 KB

image1104×201 28 KB

My workflow:

{
"nodes": [
{
"parameters": {
"model": {
"rl": true,
"value": "gpt-4o",
"mode": "list",
"cachedResultName": "gpt-4o"
},
"options": {
"temperature": 0.7
}
},
"type": "callin.io/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.2,
"position": [
-440,
1300
],
"id": "c3ce11b0-7a93-4961-b01b-78fd57cf7dc3",
"name": "OpenAI Chat Model",
"credentials": {
"openAiApi": {
"id": "47QO75bhLHAceAfD",
"name": "OpenAi account"
}
}
},
{
"parameters": {
"sessionIdType": "customKey",
"sessionKey": "={{ $(‘Entrada’).item.json.body.phone }}"
},
"type": "callin.io/n8n-nodes-langchain.memoryBufferWindow",
"typeVersion": 1.3,
"position": [
-320,
1260
],
"id": "c32e719a-493f-4cae-a804-c3debc45fade",
"name": "Simple Memory"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "20c3e606-d162-492a-9f69-f797f60e7c82",
"name": "Regras",
"value": "Regras_nREGRAS específicas que você SEMPRE deve seguir:nVOCÊ NÃO PODE FORNECER INFORMAÇÕES QUE VOCÊ NÃO TENHA.nVocê NÃO tem acesso a uma tabela de horários e das consultas, ou seja, VOCÊ NÃO PODE E NÃO É CAPAZ DE VERIFICAR QUAIS HORÁRIOS ESTÃO DISPONÍVEIS.nNUNCA marcar ou definir um horário ou dia, ao invés diga "Para entrar em contato com um atendente, apenas digite ‘atendente’."
Quando for informar uma URL, informe EXATAMENTE a URL disponível.nNUNCA fale dos concorrentes.nNUNCA fale mal dos funcionários ou da franquia.nVocê não é capaz de analisar ou enviar fotos e vídeos.",
"type": "string"
}
]
},
"options": {}
},
"type": "callin.io/n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-700,
1100
],
"id": "08f4dce8-01d6-4cf5-9a7e-e16a509ced44",
"name": "Alimentacao IA"
},
{
"parameters": {
"content": "## Mensagem",
"height": 220,
"width": 600
},
"type": "callin.io/n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-2860,
1120
],
"id": "309c599c-a306-49da-98ed-557174035d3f",
"name": "Sticky Note1"
},
{
"parameters": {
"content": "## IA",
"height": 360,
"width": 680,
"color": 3
},
"type": "callin.io/n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-800,
1060
],
"id": "9b557a08-db5d-4264-a6a0-20f064c59732",
"name": "Sticky Note"
},
{
"parameters": {
"options": {
"timezone": "UTC-3"
}
},
"type": "callin.io/n8n-nodes-base.dateTime",
"typeVersion": 2,
"position": [
-2160,
1180
],
"id": "f6ea0165-2554-4c9d-aca5-3905fe31a97c",
"name": "Date & Time"
},
{
"parameters": {
"content": "## Informaçoes necessarias",
"height": 240,
"width": 220,
"color": 7
},
"type": "callin.io/n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-2220,
1100
],
"id": "9eefecdb-47e2-493b-8ce0-f4a5be8d5caf",
"name": "Sticky Note6"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "6df45916-e54b-41a4-b64d-5159076a909e",
"leftValue": "={{ $(‘Entrada’).item.json.body.audio }}",
"rightValue": "",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "callin.io/n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
-1920,
1160
],
"id": "8dfd98ef-2ec4-4dd7-880e-3425bd13de67",
"name": "Audio"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "6df45916-e54b-41a4-b64d-5159076a909e",
"leftValue": "={{ $(‘Entrada’).item.json.body.isGroup }}",
"rightValue": "",
"operator": {
"type": "boolean",
"operation": "false",
"singleValue": true
}
},
{
"id": "af4d2ca8-1e67-421f-8573-9a96ea515a1c",
"leftValue": "={{ $(‘Entrada’).item.json.body.isNewsletter }}",
"rightValue": "",
"operator": {
"type": "boolean",
"operation": "false",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"type": "callin.io/n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
-2620,
1180
],
"id": "3f0a05a4-1781-47d4-be21-169852c739a8",
"name": "Grupo ou noticia"
},
{
"parameters": {
"resource": "audio",
"operation": "transcribe",
"binaryPropertyName": "Audiobaixado.ogg",
"options": {
"language": "pt",
"temperature": 0
}
},
"type": "callin.io/n8n-nodes-langchain.openAi",
"typeVersion": 1.8,
"position": [
-1540,
1080
],
"id": "80ad5521-abf8-4be0-9d7d-716607ddbac9",
"name": "ATT",
"credentials": {
"openAiApi": {
"id": "47QO75bhLHAceAfD",
"name": "OpenAi account"
}
}
},
{
"parameters": {
"content": "## Mensagem",
"height": 400,
"width": 1120
},
"type": "callin.io/n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-1960,
1040
],
"id": "cf31d303-85af-4d60-9763-5c9a8118c1c7",
"name": "Sticky Note20"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "b05541c6-3b23-4fbd-8c59-6658b1969480",
"name": "mensagem",
"value": "={{$json["text"]}}",
"type": "string"
}
]
},
"options": {}
},
"type": "callin.io/n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-1360,
1080
],
"id": "97897651-0eb3-4123-b4cc-443e0ae7cf22",
"name": "Mudar nome audio"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "b05541c6-3b23-4fbd-8c59-6658b1969480",
"name": "mensagem",
"value": "={{ $(‘Entrada’).item.json.body.text.message }}",
"type": "string"
}
]
},
"options": {}
},
"type": "callin.io/n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-1540,
1260
],
"id": "5ef2440b-7dfb-4fdb-a437-3f5ec3b1627f",
"name": "Mudar nome texto"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "b05541c6-3b23-4fbd-8c59-6658b1969480",
"name": "Mensagemusuario",
"value": "={{$json["mensagem"]}}",
"type": "string"
}
]
},
"options": {}
},
"type": "callin.io/n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-1160,
1180
],
"id": "7f6699d5-bd29-4f85-858b-7f78807e9530",
"name": "Mensagem cliente"
},
{
"parameters": {
"url": "={{ $(‘Entrada’).item.json.body.audio.audioUrl }}",
"options": {
"response": {
"response": {
"responseFormat": "file",
"outputPropertyName": "Audiobaixado.ogg"
}
}
}
},
"type": "callin.io/n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
-1720,
1080
],
"id": "9b3275c3-46ab-4972-93b3-97986d6240f5",
"name": "Baixar audio"
},
{
"parameters": {
"method": "POST",
"url": "https://api.z-api.io/instances/3DF83D50E924600B89114AF752FBD4C9/token/3A57FD1E57D5401D0D8D9FD0/send-text",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Client-Token",
"value": "F10d45f245fb04fff98954cbc06cc5a73S"
}
]
},
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "phone",
"value": "={{ $(‘Entrada’).item.json.body.phone }}"
},
{
"name": "message",
"value": "=DIVA:

{{ $(‘IA resposta’).item.json.output }}"
}
]
},
"options": {}
},
"type": "callin.io/n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
-60,
1100
],
"id": "4c00da03-97e0-4b38-a27c-06b80e3e45c8",
"name": "Envia resposta da IA"
},
{
"parameters": {
"promptType": "define",
"text": "={{ $(‘Mensagem cliente’).item.json}}",
"options": {
"systemMessage": "=## Nome do paciente: {{ $(‘Entrada’).item.json.body.senderName }}

Regras e modo de agir: {{ $json[Regras] }}

Para saber a data e hora atual: {{ $(‘Date & Time’).item.json.currentDate }}, sempre verifique a data e hora para informar se a clínica está aberta."

    }
  },
  "type": "callin.io/n8n-nodes-langchain.agent",
  "typeVersion": 1.8,
  "position": [
    -420,
    1100
  ],
  "id": "6947214f-9a9d-4151-9229-c2de647ca493",
  "name": "IA resposta"
},
{
  "parameters": {
    "httpMethod": "POST",
    "path": "cfcd14e1-9610-4fac-b8d1-b9f9836a7cda",
    "options": {}
  },
  "type": "callin.io/n8n-nodes-base.webhook",
  "typeVersion": 2,
  "position": [
    -2820,
    1180
  ],
  "id": "04ba641b-ad8d-4cd8-aaa7-200fb7e341d3",
  "name": "Entrada",
  "webhookId": "cfcd14e1-9610-4fac-b8d1-b9f9836a7cda"
}

],
"connections": {
"OpenAI Chat Model": {
"ailanguageModel": [
[
{
"node": "IA resposta",
"type": "ailanguageModel",
"index": 0
}
]
]
},
"Simple Memory": {
"aimemory": [
[
{
"node": "IA resposta",
"type": "aimemory",
"index": 0
}
]
]
},
"Alimentacao IA": {
"main": [
[
{
"node": "IA resposta",
"type": "main",
"index": 0
}
]
]
},
"Date & Time": {
"main": [
[
{
"node": "Audio",
"type": "main",
"index": 0
}
]
]
},
"Audio": {
"main": [
[
{
"node": "Baixar audio",
"type": "main",
"index": 0
}
],
[
{
"node": "Mudar nome texto",
"type": "main",
"index": 0
}
]
]
},
"Grupo ou noticia": {
"main": [
[
{
"node": "Date & Time",
"type": "main",
"index": 0
}
]
]
},
"ATT": {
"main": [
[
{
"node": "Mudar nome audio",
"type": "main",
"index": 0
}
]
]
},
"Mudar nome audio": {
"main": [
[
{
"node": "Mensagem cliente",
"type": "main",
"index": 0
}
]
]
},
"Mudar nome texto": {
"main": [
[
{
"node": "Mensagem cliente",
"type": "main",
"index": 0
}
]
]
},
"Mensagem cliente": {
"main": [
[
{
"node": "Alimentacao IA",
"type": "main",
"index": 0
}
]
]
},
"Baixar audio": {
"main": [
[
{
"node": "ATT",
"type": "main",
"index": 0
}
]
]
},
"Envia resposta da IA": {
"main": [

]
},
"IA resposta": {
"main": [
[
{
"node": "Envia resposta da IA",
"type": "main",
"index": 0
}
]
]
},
"Entrada": {
"main": [
[
{
"node": "Grupo ou noticia",
"type": "main",
"index": 0
}
]
]
}
},
"pinData": {},
"meta": {
"templateCredsSetupCompleted": true,
"instanceId": "830499f171848f15a469f0e9f9a863419688d34cef2f92af12f26fd8a2674645"
}
}

(Entrada) API Webhook for WhatsApp integration.

(Audio, Baixar audio, Mudar nome audio, Mudar nome texto Mensagem cliente) If the message is audio, it gets transcribed and its name is modified; for text messages, the name is also modified.

(Alimentacao IA) AI receives the input and instructions on how to proceed.

(Resposta IA) AI generates the response.

(Envia resposta IA) Sends the message.

I've placed all the details in the comment section.

Could you please share the response from the Alimentacao IA edit node?

In the AI Agent, for the Prompt (User Message), could you try using {{ $(‘Mensagem cliente’).item.json.Mensagem_usuario}} instead of just {{ $(‘Mensagem cliente’).item.json}}?

Give it a shot and see if that resolves your issue.