What ConnectRxCare validates today
ConnectRxCare's order builder states it sends only required fields unless a SKU requires justification or a prescription document. Directions are optional unless VSDH requires them for that SKU. That protects VSDH's pharmacy from incomplete single orders — it is not the same as validating thirty patient lines together before one clinic checkout.
Partner API integrators inherit these rules per submission. Custom automation can pre-check data, but the platform does not publicly promise a unified validation pass across a batch cart VSDH has not documented.