# API - Updating Lead fields

### Route

<mark style="color:green;">`PUT`</mark> `/leads?apitoken=your-token&i=your-instance`

Full endpoint: <mark style="color:green;"><https://sprinthub-api-master.sprinthub.app/leads?apitoken=your-token\\&i=your-instance></mark>

### Query Params

<table><thead><tr><th width="291">Key</th><th width="450">Description</th></tr></thead><tbody><tr><td>i</td><td>Identifier of your instance, subdomain </td></tr><tr><td>apitoken</td><td>API token</td></tr></tbody></table>

### Default system fields

[Click here ](/en/topics/api/api-creating-a-lead.md)to see which are the default system fields for Leads, such as, for example, *firstname*, *lastname*, *whatsapp*, among others.

## Example updating Lead fields

The aliases of the fields to be updated for the Lead were included in the request body. The request was sent using the software *Postman*.

<figure><img src="/files/ab0f9390ffd7326c46134ebd9ebdd147f24e1778" alt=""><figcaption><p><em>PUT request to update Lead.</em></p></figcaption></figure>


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