n8nChat blog
Tutorials and how-tos for building n8n workflows with the n8nChat Chrome extension.
- n8n Loop Over Items Out of Memory: Use Execute Sub-workflow
Fix n8n Loop Over Items (Split in Batches) OOM by calling Execute Sub-workflow per batch and returning tiny payloads. Docker heap tips included.
- n8n MCP Media Buying with LazyAds (Webhooks + REST Spend Alerts)
Build an n8n media-buying workflow that reacts to LazyAds webhooks, calls documented REST pause and budget endpoints, and uses LazyAds MCP for agent-side ops.
- n8n Wait Node: Webhook Resume URLs Without Surprises
Use the n8n Wait node with time delays, forms, and unique webhook resume URLs. Learn the runtime URL flow, limits, static callback routing, and fixes.
- n8n Webhook Response and Respond to Webhook (Why the Caller Times Out)
The n8n webhook can reply immediately, wait for the last node, or use Respond to Webhook. A mismatch is why callers time out or get 200 too soon.
- n8n Error Workflow for AI Agent Tool Failures (Why the Agent Stays Green)
The n8n Error Trigger fires when a node fails. AI Agent tool errors often stay green. Here is how to catch them.