Overview
JavaScript here means the Code node inside n8n, not an image SDK. The node can total an amount, build a full name, drop extra rows, and format a date the way the CRM expects.
Where it helps
- The standard n8n blocks do not know the rule you use for a discount or a priority.
- Data from two sources becomes one object before it is saved.
- A bad field does not pass through quietly: the workflow stops and sends an alert.
Describe the rule in plain language. The code stays in your workflow, so it can be read without a separate repository.