Updates the specified properties for multiple contacts. Fields that are included in fieldMask.paths are updated, while all other fields stay the same.
All contacts that meet the specified filter and search criteria are updated.
To perform a dry run, use the intended filter options with
Query Contacts.
When this endpoint is used, a bulk job is started and the job ID is returned. The job may not complete right away, depending on its size. The job's status can be retrieved with Get Bulk Job or List Bulk Jobs.
You can only call this method when authenticated as a Wix app or Wix user identity.