Invoice issuance vs. fiscal acceptance

Two authoritative state domains

Question	Read model	Meaning
Was a commercial invoice issued?	Invoice resource	Number and immutable issued snapshot.
What happened to the provider registration?	Fiscal status / operation resource	Queued, submitted, accepted, rejected, or unresolved outcome.
Was a document generated?	Invoice document resource	Document processing state and stored artifact metadata.

Do not conflate fields

An invoice’s issuance-policy field can be NotRequired while a provider operation has its own Accepted outcome. Display the dedicated fiscal operation/status projection.

Safe integration behavior

Persist invoice and operation IDs separately. Refresh provider status using the read APIs or signed webhook events. If a response is lost after a possible transmission, preserve an indeterminate state and reconcile before any retransmission.