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-rw-r--r--taler-merchant-manual.rst22
1 files changed, 16 insertions, 6 deletions
diff --git a/taler-merchant-manual.rst b/taler-merchant-manual.rst
index d93c12d..3b0aba0 100644
--- a/taler-merchant-manual.rst
+++ b/taler-merchant-manual.rst
@@ -180,6 +180,17 @@ merchant, where the merchant specifies the specific terms of the order.
After an order is created, it is *claimed* by a wallet. Once an order is
claimed by a specific wallet, only that wallet will be able to pay for this
order, to the exclusion of other wallets even if they see the same order URL.
+Sharing order URLs is explicitly allowed: if a user shares and order URL
+with another user, that other user should be given the opportunity to
+purchase the same product.
+
+To prevent unauthorized wallets from claiming an order, merchants can specify
+that claims require authorization in the form of a *claim token*. This is
+useful in case the order ID is predictable (say because an existing order ID
+scheme from the merchant frontend is used) and at the same time malicious
+actors claiming orders is problematic (say because of limited stocks). The use
+of claim tokens is optional, but if a claim token is used, it must be provided
+to the wallet as part of the order URI.
A wallet may *pay* for a claimed order, at which point the order turns into
a (paid) contract. Orders have an expiration date after which the commercial
@@ -189,12 +200,11 @@ allowing the stock to be sold in other orders.
Once a contract has been paid, the merchant should fulfill the contract. It
is possible for the merchant to *refund* a contract order, for example if the
contract cannot be fulfilled after all. Refunds are only possible after the
-customer paid and before the
-exchange has *wired* the payment to the merchant. Once the funds have been
-wired, refunds are no longer allowed by the Taler exchange. The *wire
-deadline* specifies the latest time by which an exchange must wire the funds,
-while the (earlier) *refund deadline* specifies the earliest time when an
-exchange may wire the funds.
+customer paid and before the exchange has *wired* the payment to the
+merchant. Once the funds have been wired, refunds are no longer allowed by the
+Taler exchange. The *wire deadline* specifies the latest time by which an
+exchange must wire the funds, while the (earlier) *refund deadline* specifies
+the earliest time when an exchange may wire the funds.
Contract information is kept for legal reasons, typically to provide tax
records in case of a tax audit. After the *legal expiration* (by default a