Update a Klaviyo profile's contact information and custom properties by providing the profile ID and optional fields.
| Name | Required | Description | Default |
|---|---|---|---|
| profile_id | Yes | The ID of the profile to update | |
| No | Email address for the profile | ||
| phone_number | No | Phone number for the profile | |
| external_id | No | External ID for the profile | |
| first_name | No | First name | |
| last_name | No | Last name | |
| properties | No | Additional properties as a JSON object |
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