# Datafield special tags

Clause9 integrates with virtually every company register in the world. You can designate special tags from a predefined list to link your datafields with certain party-specific variable fields. This way, users who use questionnaires to generate contracts can quickly draw information from those registers by simply searching for a company’s name or company number.

For example, say you have the concept “Purchaser”. The Purchaser is a party to a contract meaning their name, address and company number (at the very least) should be present in the agreement. For these three distinct datafields, you can add the following special tags:

* Name: *entity-name*
* Address: any of the following special tags – *entity-street*, *entity-street-nr*, *entity-street-nr-zip-city*, *entity-zip*, *entity-city*
* Company number: *entity-number*