Marks form submissions as "seen".
This function marks the submissions as if they were seen by the site owner. Only site collaborators with the Manage Submission permissions can mark submissions.
This method may require higher-level permissions than the caller has, based on their identity and roles and permissions. In these cases, you can ensure the method is called with the required level of authorization by using one of the following:
ID of the form which the submissions belong to.
IDs of submissions to mark as seen.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.