diff options
1 files changed, 3 insertions, 1 deletions
diff --git a/core/api-merchant.rst b/core/api-merchant.rst
index 4adf9874..01a431bc 100644
--- a/core/api-merchant.rst
+++ b/core/api-merchant.rst
@@ -1161,7 +1161,9 @@ Payment processing
by an non-negative integer within brackets: ``$.products[1]``. An asterisk ``*``
can be used to index an array as a wildcard, which expands the path into a
list of paths containing one path for
- each valid array index: ``$.products[*].description``.
+ each valid array index: ``$.products[*].description``. For a path to be valid,
+ it must end with a reference to a field of an object (it cannot end with an
+ array index or wildcard).