If an invoice has been cleared by the Integration Sandbox, can it be issued to a buyer?

SDK, web-based validator and sandbox
1

If an invoice has been cleared by the Integration Sandbox, can it be issued to a buyer?

2

No. The Integration Sandbox is not intended to validate actual invoices and is for testing purposes only. The successful validation of an XML using the Integration Sandbox should not be deemed as any kind of acceptance or approval by ZATCA.