This bridge module adds the technical requirements of the Portuguese Certification regulation (Administrative Decree no. 363/2010) that stipulates certain criteria concerning the inalterability and authenticity of invoicing data.

The module adds the following features:

• AT Series: allows the creation of document series, under which documents must be emitted.
• Digital signature: documents are signed after they are emitted. After being signed, key data cannot be modified.
• QR Code: a QR Code is added to signed documents
• Hash integrity report is available based on the digital signature