Workspace
How to use Google Workspace for e-invoices?
Short answer
Google Workspace can support receiving, sharing, approving and communicating around e-invoices. However, it must be supplemented with XML validation, access rules, audit trail and controlled export to the accountant.
Gmail
Communication
Messages about errors, rejections and suppliers should be linked to the document.
Drive
Files
Drive will help with sharing, but the XML originals must remain controlled.
Sheets
Overview
A table can track status, but is not meant to replace a validator or archive.
Rights
Security
The client, accountant and internal team should not have the same rights to all documents.
Conclusion
Not legal advice. Machine-translated answer, not yet manually reviewed. For the exact wording, see the Slovak original.