vocapablequote_invalid
The quote's money breaks a rule: no lines, a zero total, a discount above the subtotal, a tax amount under a treatment that has none, an included tax above the total, a deposit outside zero…total ("The optional deposit must be between zero and the quote total."), or an expiry in the past. reason names which.
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/quote_invalid",
"title": "…",
"status": 422,
"detail": "…",
"instance": "/v1/…"
}