- PayFast (custom integration): signed form (PHP-style encoding, checked
against a real sandbox), ITN checks (signature over all posted fields,
PayFast host, VALID from /eng/query/validate, amount vs checkout).
- ProviderCheckout records every checkout (amount, metadata, request);
webhooks match payments to it and hold a different amount for review
(ProviderTransaction.note).
- /pay/<id>: payers choose a provider when several are on, and the
browser posts PayFast's form from there, so payment links work for
every provider.
- Site settings → Payments: PayFast card (merchant ID/key, encrypted
passphrase, sandbox/live) while PayFast is enabled.
- Payer-facing wording no longer names Yoco; legal pages name both.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>