When validating an address for an individual, where they reside at an 'organisation' address (eg a care home), the organisation name is lost from address line 1. If the address is being validated manually for one constituent, then it's not ideal, but the organisation name can simply be added back in. However when using data enrichment services, and globally validating addresses, the information is lost and there is no way (as far as i can see) of knowing when this has happened. We have had mailings returned as there is insufficient information on the address if the organisation name is missing.