Problems with mysterious error

[Matheus_Marzari]

I’m having trouble understanding the error in my project, the error message is (No execution data available)

{
“nodes”: [
{
“parameters”: {
“updates”: [
“messages”
]
},
“type”: “n8n-nodes-base.whatsAppTrigger”,
“typeVersion”: 1,
“position”: [
-80,
0
],
“id”: “1c177a89-053b-4b2f-98b1-9687a77e1698”,
“name”: “Receptor de chate”,
“webhookId”: “806f4a09-5b0f-49e8-8e67-5f4fb03f2cd0”,
“credentials”: {
“whatsAppTriggerApi”: {
“id”: “jLLEXVSiymTmDI5g”,
“name”: “WhatsApp OAuth account”
}
}
},
{
“parameters”: {
“promptType”: “define”,
“text”: “={{ $json.messages[0].text.body }}”,
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.agent”,
“typeVersion”: 1.8,
“position”: [
660,
0
],
“id”: “41da6c87-4ea3-41b0-8dc2-5f70fcea5760”,
“name”: “AI Agent”
},
{
“parameters”: {
“model”: {
“__rl”: true,
“mode”: “list”,
“value”: “gpt-4o-mini”
},
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.lmChatOpenAi”,
“typeVersion”: 1.2,
“position”: [
620,
200
],
“id”: “2612b9cf-6085-4936-b30c-1fe1da13230d”,
“name”: “OpenAI Chat Model”,
“credentials”: {
“openAiApi”: {
“id”: “47QO75bhLHAceAfD”,
“name”: “OpenAi account”
}
}
},
{
“parameters”: {
“sessionIdType”: “customKey”,
“sessionKey”: “={{ $(‘Receptor de chate’).item.json.contacts[0].wa_id }}”
},
“type”: “@n8n/n8n-nodes-langchain.memoryBufferWindow”,
“typeVersion”: 1.3,
“position”: [
760,
220
],
“id”: “192ea926-1d35-4cfd-bc8b-0dcd68cab170”,
“name”: “Simple Memory”
},
{
“parameters”: {
“operation”: “send”,
“phoneNumberId”: “582181234982206”,
“recipientPhoneNumber”: “={{ $(‘Receptor de chate’).item.json.contacts[0].wa_id }}”,
“textBody”: “={{ $json.output }}”,
“additionalFields”: {}
},
“type”: “n8n-nodes-base.whatsApp”,
“typeVersion”: 1,
“position”: [
1080,
-40
],
“id”: “6455b9af-89c5-47fa-9885-4d2537130bee”,
“name”: “WhatsApp Business Cloud”,
“webhookId”: “f3c2bbf3-8974-4971-ab7b-7aeaed19a3ff”,
“credentials”: {
“whatsAppApi”: {
“id”: “c7GZUvyCPzq9tlqQ”,
“name”: “WhatsApp account 4”
}
}
},
{
“parameters”: {
“conditions”: {
“options”: {
“caseSensitive”: true,
“leftValue”: “”,
“typeValidation”: “strict”,
“version”: 2
},
“conditions”: [
{
“id”: “2094a61d-60f9-4aeb-9036-03344c14784b”,
“leftValue”: “={{ $json.messages[0].text.body }}”,
“rightValue”: “”,
“operator”: {
“type”: “string”,
“operation”: “exists”,
“singleValue”: true
}
}
],
“combinator”: “and”
},
“options”: {}
},
“type”: “n8n-nodes-base.if”,
“typeVersion”: 2.2,
“position”: [
260,
20
],
“id”: “3702f2fe-e0d8-4024-a580-4211a80b7011”,
“name”: “If”
}
],
“connections”: {
“Receptor de chate”: {
“main”: [
[
{
“node”: “If”,
“type”: “main”,
“index”: 0
}
]
]
},
“AI Agent”: {
“main”: [
[
{
“node”: “WhatsApp Business Cloud”,
“type”: “main”,
“index”: 0
}
]
]
},
“OpenAI Chat Model”: {
“ai_languageModel”: [
[
{
“node”: “AI Agent”,
“type”: “ai_languageModel”,
“index”: 0
}
]
]
},
“Simple Memory”: {
“ai_memory”: [
[
{
“node”: “AI Agent”,
“type”: “ai_memory”,
“index”: 0
}
]
]
},
“WhatsApp Business Cloud”: {
“main”: [

]
},
“If”: {
“main”: [
[
{
“node”: “AI Agent”,
“type”: “main”,
“index”: 0
}
]
]
}
},
“pinData”: {},
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “830499f171848f15a469f0e9f9a863419688d34cef2f92af12f26fd8a2674645”
}
}

[Sebas]

I could not get your workflow copied, remember to paste it between ticks, three before and close with three ticks.

If you could provide the flow, we can have a look

This error could be related to memory issues when executing in test. For this you should use the bin often.

Something else that might be at play:

WhatsApp Business Cloud Node Fails with "No Execution Data Available" When Using Dynamic Parameters

[Matheus_Marzari]

{
“nodes”: [
{
“parameters”: {
“updates”: [
“messages”
]
},
“type”: “n8n-nodes-base.whatsAppTrigger”,
“typeVersion”: 1,
“position”: [
-80,
0
],
“id”: “1c177a89-053b-4b2f-98b1-9687a77e1698”,
“name”: “Receptor de chate”,
“webhookId”: “806f4a09-5b0f-49e8-8e67-5f4fb03f2cd0”,
“credentials”: {
“whatsAppTriggerApi”: {
“id”: “jLLEXVSiymTmDI5g”,
“name”: “WhatsApp OAuth account”
}
}
},
{
“parameters”: {
“promptType”: “define”,
“text”: “={{ $json.messages[0].text.body }}”,
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.agent”,
“typeVersion”: 1.8,
“position”: [
660,
0
],
“id”: “41da6c87-4ea3-41b0-8dc2-5f70fcea5760”,
“name”: “AI Agent”
},
{
“parameters”: {
“model”: {
“__rl”: true,
“mode”: “list”,
“value”: “gpt-4o-mini”
},
“options”: {}
},
“type”: “@n8n/n8n-nodes-langchain.lmChatOpenAi”,
“typeVersion”: 1.2,
“position”: [
620,
200
],
“id”: “2612b9cf-6085-4936-b30c-1fe1da13230d”,
“name”: “OpenAI Chat Model”,
“credentials”: {
“openAiApi”: {
“id”: “47QO75bhLHAceAfD”,
“name”: “OpenAi account”
}
}
},
{
“parameters”: {
“sessionIdType”: “customKey”,
“sessionKey”: “={{ $(‘Receptor de chate’).item.json.contacts[0].wa_id }}”
},
“type”: “@n8n/n8n-nodes-langchain.memoryBufferWindow”,
“typeVersion”: 1.3,
“position”: [
760,
220
],
“id”: “192ea926-1d35-4cfd-bc8b-0dcd68cab170”,
“name”: “Simple Memory”
},
{
“parameters”: {
“operation”: “send”,
“phoneNumberId”: “582181234982206”,
“recipientPhoneNumber”: “={{ $(‘Receptor de chate’).item.json.contacts[0].wa_id }}”,
“textBody”: “={{ $json.output }}”,
“additionalFields”: {}
},
“type”: “n8n-nodes-base.whatsApp”,
“typeVersion”: 1,
“position”: [
1080,
-40
],
“id”: “6455b9af-89c5-47fa-9885-4d2537130bee”,
“name”: “WhatsApp Business Cloud”,
“webhookId”: “f3c2bbf3-8974-4971-ab7b-7aeaed19a3ff”,
“credentials”: {
“whatsAppApi”: {
“id”: “c7GZUvyCPzq9tlqQ”,
“name”: “WhatsApp account 4”
}
}
},
{
“parameters”: {
“conditions”: {
“options”: {
“caseSensitive”: true,
“leftValue”: “”,
“typeValidation”: “strict”,
“version”: 2
},
“conditions”: [
{
“id”: “2094a61d-60f9-4aeb-9036-03344c14784b”,
“leftValue”: “={{ $json.messages[0].text.body }}”,
“rightValue”: “”,
“operator”: {
“type”: “string”,
“operation”: “exists”,
“singleValue”: true
}
}
],
“combinator”: “and”
},
“options”: {}
},
“type”: “n8n-nodes-base.if”,
“typeVersion”: 2.2,
“position”: [
260,
20
],
“id”: “3702f2fe-e0d8-4024-a580-4211a80b7011”,
“name”: “If”
}
],
“connections”: {
“Receptor de chate”: {
“main”: [
[
{
“node”: “If”,
“type”: “main”,
“index”: 0
}
]
]
},
“AI Agent”: {
“main”: [
[
{
“node”: “WhatsApp Business Cloud”,
“type”: “main”,
“index”: 0
}
]
]
},
“OpenAI Chat Model”: {
“ai_languageModel”: [
[
{
“node”: “AI Agent”,
“type”: “ai_languageModel”,
“index”: 0
}
]
]
},
“Simple Memory”: {
“ai_memory”: [
[
{
“node”: “AI Agent”,
“type”: “ai_memory”,
“index”: 0
}
]
]
},
“WhatsApp Business Cloud”: {
“main”: [

]
},
“If”: {
“main”: [
[
{
“node”: “AI Agent”,
“type”: “main”,
“index”: 0
}
]
]
}
},
“pinData”: {},
“meta”: {
“templateCredsSetupCompleted”: true,
“instanceId”: “830499f171848f15a469f0e9f9a863419688d34cef2f92af12f26fd8a2674645”
}
}