eCRV Web Services offers the Upload service to add parcel data to an eCRV. This service updates data elements located on the County/Parcels sub-tab in the user interface. To add Parcel IDs to an eCRV, use Upload County Parcel Service.
A service is available for either a County or Muni (City). A user is only able to modify eCRVs for their local government agency.