n8n
Migrate Your n8n Notion Workflow to the v3 Node Data Source Model: A Step-by-Step Fix
Migrate n8n Notion workflows to the v3 node data source model: swap database IDs for data source IDs, fix every operation and the trigger, and test safely.
Troubleshooting
AI Tools
Fix n8n Slack Trigger 401: Add the Signing Secret for n8n 3.0
Fix the n8n Slack Trigger 401 by adding your Slack app signing secret to the n8n credential before the n8n 3.0 upgrade, then re-verify the webhook.
n8n
Fix n8n Dataverse Node 401 and 403 Errors (2026)
Fix n8n Microsoft Dataverse 401 and 403 errors: decode Entra AADSTS codes, repair client secrets, grant admin consent, and assign Dataverse security roles.
n8n
How to Fix n8n Gmail Trigger ETIMEDOUT on Self-Hosted n8n (Broken IPv6 Route)
Gmail Trigger ETIMEDOUT on self-hosted n8n? A broken IPv6 route is the usual cause. Diagnose and fix it with NODE_OPTIONS=--dns-result-order=ipv4first.
n8n
n8n Workflow Force-Stopped After Hours? Fix Out-of-Memory Crashes with Batch Processing
n8n workflows dying after hours with no node error are usually memory kills. Diagnose the crash, then fix it with batching, execution pruning, and heap caps.
n8n
How to Fix n8n Schedule Trigger Firing at the Wrong Time in Docker: The Timezone Layer Cake
n8n Schedule Trigger fires hours off? Fix Docker timezone bugs by setting node Timezone, workflow timezone, and GENERIC_TIMEZONE in the right order.
n8n
How to Fix n8n Code Node Not Reading Environment Variables ($env Undefined)
Fix n8n Code node environment variable errors: restore $env access safely with N8N_BLOCK_ENV_ACCESS_IN_NODE, Python runner settings, and allowlist alternatives.
n8n
How to Fix n8n Telegram Trigger Not Working: A 6-Step Diagnostic Checklist
Fix the n8n Telegram Trigger not firing: diagnose with getWebhookInfo, re-register the webhook, then check test URLs, privacy mode, and N8N_WEBHOOK_URL.
n8n
How to Fix n8n 429 Rate Limit Errors with Staggered Schedule Triggers
Stop n8n 429 rate limit errors by staggering Schedule Triggers off the hour, adding jitter, and treating 429 as an expected retry, not a crash.
n8n
How to Fix n8n AI Agent Not Calling Tools: 4 Proven Fixes
Fix an n8n agent that ignores its tools: rewrite tool descriptions, add $fromAI() params, enable Force Tool Call on First Iteration, and use a capable model.