This element MUST be conveyed as the root element in any instance document based on this Schema expression ABIE Envelope. Details The Business Document Envelope Envelope A container for all extensions present in the document. BBIE Envelope. BDE Version Identifier. Identifier The version of the specific envelope model in use. 0..1 Envelope BDE Version Identifier Identifier Identifier. Type BBIE Envelope. Customization Identifier. Identifier The identification of a customization or use of the envelope model. 0..1 Envelope Customization Identifier Identifier Identifier. Type BBIE Envelope. Identifier Unique ID for the envelope for tracking purposes. 1 Envelope Identifier Identifier Identifier. Type BBIE Envelope. Creation Date Time. Date Time Date and time when the envelope was created. 1 Envelope Creation Date Time Date Time Date Time. Type BBIE Envelope. Test Indicator. Indicator There is a requirement to identify that the content inside the envelope is for test purposes. 0..1 Envelope Test Indicator Indicator Indicator. Type ASBIE Envelope. From_ Party. Party An unambiguous identification of the party that originated the envelope. 0..1 Envelope From Party Party Party ASBIE Envelope. To_ Party. Party An unambiguous identification of the party to receive the envelope. 1 Envelope To Party Party Party ASBIE Envelope. Payload The actual payload, such as an invoice, to be processed at next level. 1..n Envelope Payload Payload Payload This is an optional set of digital signatures as defined by the W3C specification.