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-rw-r--r--taler-merchant-api-tutorial.rst6
1 files changed, 5 insertions, 1 deletions
diff --git a/taler-merchant-api-tutorial.rst b/taler-merchant-api-tutorial.rst
index d42f74b..438c1cd 100644
--- a/taler-merchant-api-tutorial.rst
+++ b/taler-merchant-api-tutorial.rst
@@ -309,7 +309,11 @@ the same digital product where repurchase detection is desired.
Note that changing the session ID to a different device requires the
involvement of the wallet that made the payment, thus reasonably limiting the
-possibility of broadly sharing the digital purchases.
+possibility of broadly sharing the digital purchases. Repurchase detection is
+also *only* done for HTTP(S) fulfillment URLs. In particular, this means
+fulfillment URIs like "taler://fulfillment-success/$MESSAGE" are not
+considered to identify a resource you can pay for and thus do not have to be
+unique.
.. _Giving-Customers-Tips: