subscription_terms_unsigned
The same route with a custom, comped, or prepaid terms row carrying no order_acceptance_id (ADR-0035 d1 put prepaid in the acceptance-required branch - a prepayment is a negotiated commitment with a counterparty). It is the CHECK that makes a paperless deal of those shapes unrepresentable rather than merely refused, modelled on commitment_reconciles (packages/persistence/src/vocapable_persistence/tables/platform.py:679-683). Nothing was written. What an operator does: record the signed Production Services Order through the agreements flow so an agreement_acceptances row exists - version plus the SHA-256 of the exact bytes signed - then re-send naming that acceptance id. There is no override: the price and the paper may not diverge. P1 - built 2026-08-19.
Problem shape
Every non-2xx response is an RFC 9457 application/problem+json body. The type URI below is stable and machine-matchable, so branch on the final path segment (the code) and treat the status as redundant confirmation. See the error-handling guide.
{
"type": "https://docs.vocapable.com/errors/subscription_terms_unsigned",
"title": "…",
"status": 422,
"detail": "…",
"instance": "/v1/…"
}