The Demographics web service is used to update demographic data related with existing accounts. Updates a Demographic for an existing account. Creates a new Multi-Instance record. Updates a Multi-Instance record. Deletes a Multi-Instance record. Updates a Demographic for an existing account. Creates a new Multi-Instance record. Updates a Multi-Instance record. Deletes a Multi-Instance record. Updates a Demographic for an existing account. Creates a new Multi-Instance record. Updates a Multi-Instance record. Deletes a Multi-Instance record. The Demographics web service is used to update demographic data related with existing accounts.