Concatenation
Joining two or more strings into one. Example: `firstName + " " + lastName` → "Jane Smith". Used constantly in automation to build dynamic messages, file names, API parameters, and personalised content from individual data fields.
Expert insight
Concatenating strings without a defined separator, or with inconsistent handling of empty values, produces output like "JohnSmith" instead of "John Smith" or a trailing comma when a field happens to be blank, small formatting bugs that are easy to overlook until a client notices them in an actual email or document.
In a real workflow
First and last names are concatenated into a full name for the invoice.
Common mistakes
- Missing spaces or double spaces.
- Concatenating values that might be empty.
Complexity level
Anyone can understand this no technical background needed.
Related terms
Template literal
A string that contains dynamic expressions resolved at runtime. In n8n: `"Hello …
Data transformation
Modifying data as it flows through an automation reformatting dates, concatenati…
Formatting (data)
Standardising data into a consistent shape before it enters a downstream system.…
See it in action
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