- Relabel UPS 'Bill My Account' -> "Bill recipient's UPS account" with clear
help (it bills the customer's own UPS account; $0 shipping line; falls back to
Bill Shipper when the customer has no account on file).
- Improve the customer 'UPS Account Number' field help (stored per-customer,
auto-recalled at ship time for Bill Receiver).
- Add ups_rest_documentation_type setting (No / UPS commercial invoice) on the
UPS REST carrier, mirroring FedEx. Default 'invoice' preserves the existing
auto-generate-on-international behaviour; gate require_invoice on it so it can
be turned off. Surfaced on the UPS REST config page.
Validated live on entech (UPS production): CA->US shipment generated the label
+ a 60KB commercial invoice PDF (country of origin auto = CA, HS code applied),
then voided. Bill Receiver request confirmed accepted by UPS.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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