patch
https://api.safetyculture.io/assets/v1/assets/
When you update an assetβs custom fields using this endpoint, include values for all custom fields associated with the asset. To update only some field values, use Set asset field values instead.
Include values for every existing custom field you want to keep. If a custom field is missing from the request, the value may be cleared.
Requirements
If your organization uses site-based access for assets, the API only updates assets that the API tokenβs user can access through their site membership.