# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1588654931 -7200
# Node ID 84d1bd38dd51f7164dcfc3d082eb700824cec088
# Parent  0d02abd26842c0750a51ef442690bbb228698e91
ovewrite

diff -r 0d02abd26842 -r 84d1bd38dd51 Sphinx/source/faq/orthanc-ids.rst
--- a/Sphinx/source/faq/orthanc-ids.rst	Tue May 05 06:58:18 2020 +0200
+++ b/Sphinx/source/faq/orthanc-ids.rst	Tue May 05 07:02:11 2020 +0200
@@ -43,6 +43,12 @@
 `DicomInstanceHasher class
 <https://hg.orthanc-server.com/orthanc/file/default/Core/DicomFormat/DicomInstanceHasher.cpp>`_.
 
+If two different instances have the same Orthanc identifier, only one
+of them is kept. By default, the first instance that was received by
+Orthanc is kept. You can choose to replace the first instance by the
+second instance by setting :ref:`configuration option <configuration>`
+``OverwriteInstances`` to ``true``.
+
 
 The "Inexistent Tag" error
 --------------------------