Rename Keys consultants

Q: When would I use the Rename Keys node instead of a Set node?

Use Rename Keys when you want to change a field's name without changing its value. The Set node is for assigning new values to fields. If you need to rename "email_address" to "email" while keeping the actual email value intact, Rename Keys is the right choice. If you need to transform the value itself (like converting a date format), use Set or a Code node instead.

Q: Can Rename Keys handle nested JSON properties?

Yes. You can target nested keys by specifying the path using dot notation. If your JSON has a structure like {contact: {first_name: "Matt"}}, you can rename "contact.first_name" to "contact.given_name". This is useful when working with API responses that return deeply nested data structures.

Q: Does Rename Keys work with arrays of objects?

n8n processes items individually, so if your workflow produces multiple items (like rows from a database query), Rename Keys applies the same renaming rules to every item. You do not need a loop. Each item passes through the node and gets its keys renamed according to your rules.

Q: Can I use regex to rename keys dynamically?

Yes. The node supports regex-based renaming, which is useful when multiple keys follow a similar pattern. For example, you could rename all keys starting with "old_" to start with "new_" using a single regex rule instead of listing each key individually.

Q: What happens if the key I want to rename does not exist in the data?

If the specified source key is not present in an item, the node simply skips that rename rule for that item. It does not throw an error or crash the workflow. This makes it safe to define renaming rules for keys that may only appear in some items.

Q: How does Osher use Rename Keys in client projects?

We use it in almost every integration project. A typical example: connecting a client's Xero accounting system to their HubSpot CRM required renaming 12 fields between the two APIs. Rename Keys handled this in a single node rather than writing custom JavaScript. Our n8n consulting team builds clean, maintainable workflows where Rename Keys keeps the data mapping transparent.

We can help you automate your business with Rename Keys and hundreds of other systems to improve efficiency and productivity. Get in touch if you’d like to discuss implementing Rename Keys.

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About Rename Keys

Rename Keys is a utility node in n8n that changes the property names (keys) of JSON objects as they pass through a workflow. When you connect two systems that use different field names for the same data, Rename Keys sits between them and translates one naming convention to another.

This is a common problem in integration work. Your CRM might call a field “company_name” while your accounting software expects “organisation”. Your API returns “firstName” but your database column is “first_name”. Without a translation step, data either fails to map or ends up in the wrong fields. Rename Keys solves this without writing any code.

The node lets you define one or more key renaming rules. You specify the current key name and what it should become. It can handle nested JSON properties and rename multiple keys in a single step. You can also use regex patterns for more advanced renaming across keys that share a common pattern.

At Osher, we use Rename Keys constantly in our system integration projects. Whenever we connect two platforms that structure their data differently, this node handles the field mapping without adding code nodes to the workflow. If your n8n workflows are breaking because of mismatched field names between systems, this is usually the fix.

Rename Keys FAQs

Frequently Asked Questions

Common questions about how Rename Keys consultants can help with integration and implementation

When would I use the Rename Keys node instead of a Set node?

Can Rename Keys handle nested JSON properties?

Does Rename Keys work with arrays of objects?

Can I use regex to rename keys dynamically?

What happens if the key I want to rename does not exist in the data?

How does Osher use Rename Keys in client projects?

How it works

We work hand-in-hand with you to implement Rename Keys

As Rename Keys consultants we work with you hand in hand build more efficient and effective operations. Here’s how we will work with you to automate your business and integrate Rename Keys with integrate and automate 800+ tools.

Step 1

Process Audit

We map the data schemas of both source and destination systems, documenting every field name difference. This audit produces a complete translation table showing which keys need renaming and identifies any fields that require transformation beyond simple renaming.

Step 2

Identify Automation Opportunities

We review existing workflows for places where data mapping is handled by Code nodes or manual steps. Each of these is a candidate for replacement with Rename Keys, which simplifies maintenance and makes the field mapping visible without reading code.

Step 3

Design Workflows

We design the Rename Keys configuration with the exact source-to-destination key mappings. For complex integrations with dozens of fields, we group related renames logically and document each mapping rule so future developers can understand the translation at a glance.

Step 4

Implementation

We add the Rename Keys node to the workflow, configure each key mapping, and wire it between the data source and destination nodes. We test with sample data from both systems to confirm every field maps correctly before connecting to production data.

Step 5

Quality Assurance Review

We test with real-world data samples that include edge cases: missing fields, null values, unexpected data types, and special characters in key names. We verify that downstream nodes receive correctly renamed data and that no fields are lost or duplicated during the rename.

Step 6

Support and Maintenance

When either the source or destination system updates their API (adding new fields, renaming existing ones), we update the Rename Keys configuration to match. We keep the key mapping documentation current so changes are traceable.

Transform your business with Rename Keys

Unlock hidden efficiencies, reduce errors, and position your business for scalable growth. Contact us to arrange a no-obligation Rename Keys consultation.

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