An n8n workflow is a collection of nodes that automate a process. A workflow begins execution when a trigger condition occurs and then executes sequentially to complete a task.

In n8n, a trigger node starts a workflow when a specific event or condition occurs, such as receiving an email, reaching a scheduled time, or receiving a webhook request.

n8n templates are pre-built workflows created by n8n or the community that you can import, configure, and customize for your own needs. To find these templates, go to Google and search for "n8n templates." Then, open the official n8n templates page and start using them in your n8n instance.

In an n8n cluster node, a sub-node is a supporting node connected to a root node that provides a specific capability or resource, extending the root node's functionality. [Example] Imagine you build an AI Agent in n8n. The AI Agent is the root node. To perform its job, it may need additional capabilities, such as an AI model, memory, or tools. You connect a Chat Model to the AI Agent. The Chat Model acts as a sub-node because it provides the language model the agent needs to process information and generate responses. You can also connect a Memory sub-node. Memory allows the AI Agent to retain and use information from previous interactions when needed. You can then connect a tool, such as Google Sheets. This allows the AI Agent to interact with Google Sheets when needed. So, the AI Agent is the root node, while the Chat Model, Memory, and tools are sub-nodes. Together, they form a cluster that extends what the AI Agent can do.

New to n8n? Here's what a node actually is. A node is a single building block in an n8n workflow. It can start the workflow, fetch, send, or process data, control the flow logic, or connect to an external service. You link multiple nodes together to create a complete automation.