Third-party ERP software certification
This is rarely a requirement. Often the high level nature of the audit process renders the audit certificate more a marketing tool than a statement of requirements, necessary to sell and operate ERP successfully in a new country.
Sales invoices, whether manual or electronic, generally require government certification. This includes electronic signatures, content, tax ID, sequential numbering, layout, etc., and extends to credit memos, debit memos, returns, and invoices that are sent and received through a web portal that is hosted by a service provider or the government.
United Kingdom specifics
As an alternative to making VAT declaration submissions, a certification process is provided for software developers to submit the VAT return (100) and the EC Sales List (101).
Several commercial software products have been tested and can be used to submit the VAT return and the EC Sales List online.