ZATCA Fatoora Phase 2 is a cryptographic build, and it is not built.
This is the clearest no on the site, and it is worth being unambiguous. Saudi Arabia requires invoices under ZATCA Fatoora Phase 2 to carry a cryptographic stamp and be submitted as UBL 2.1 XML. That is not an integration you configure — it is a signing implementation, and Rebota does not have it. A contractor in the Kingdom cannot issue a compliant tax invoice from Rebota today. What Rebota can do is run the project behind the invoice: BOQ, measurement, procurement, subcontracts and cost control, with the invoice itself raised in a ZATCA-compliant system. Whether that split is worth it is a judgement only you can make, and for many firms it will not be.
This page is the intersection. The country page covers currency, financial year and statutory position in detail; the sector page covers what is built, the turnover bands it suits, and what is missing regardless of country.