-change 406 to 400

1 files changed, 4 insertions, 4 deletions

diff --git a/core/api-merchant.rst b/core/api-merchant.rst
index a291d9cf..d21d8073 100644
--- a/core/api-merchant.rst
+++ b/core/api-merchant.rst
@@ -288,17 +288,17 @@ Making the payment
     Either the client request is malformed or some specific processing error
     happened that may be the fault of the client as detailed in the JSON body
     of the response.
+    This includes the case where the payment is insufficient (sum is below
+    the required total amount, for example because the wallet calculated the
+    fees wrong).
   :http:statuscode:`402 Payment required`:
     There used to be a sufficient payment, but due to refunds the amount effectively
     paid is no longer sufficient. (If the amount is generally insufficient, we
-    return "406 Not Acceptable", only if this is because of refunds we return 402.)
+    return "400 Bad Request", only if this is because of refunds we return 402.)
   :http:statuscode:`403 Forbidden`:
     One of the coin signatures was not valid.
   :http:statuscode:`404 Not found`:
     The merchant backend could not find the order or the instance and thus cannot process the payment.
-  :http:statuscode:`406 Not acceptable`:
-    The payment is insufficient (sum is below the required total amount).
-    TODO: Should probably change to a different status code in the future as 406 is technically wrong.
   :http:statuscode:`408 Request timeout`:
     The backend took too long to process the request. Likely the merchant's connection
     to the exchange timed out. Try again.