Tax and register numbers · worldwide
ISO6523 ICD Field for Gravity Forms
ISO6523 ICD Field for Gravity Forms brings a field for an organization identifier according to ISO 6523 into Gravity Forms, the form plugin for WordPress. ISO 6523 is the list of identifier types that an e-invoice uses to identify the seller and the buyer. An e-invoice is an invoice as a structured XML file that software can read. The field checks every identifier on your own server on submission, following the rules of its type, and so catches incorrectly formed identifiers before they end up in your data.
Each identifier type, also called a scheme, has a four-digit code, the ICD. For example, code 0088 stands for the GLN and code 0199 for the LEI. In the form editor you choose the scheme for each field. This choice determines the allowed length and the allowed characters and, where the method is known and documented, also the check digit.
