diff --git a/DDEX_messages/ERN_NewReleaseMessage_example.xml b/DDEX_messages/ERN_NewReleaseMessage_example.xml
index 7d00684..0bc739b 100644
--- a/DDEX_messages/ERN_NewReleaseMessage_example.xml
+++ b/DDEX_messages/ERN_NewReleaseMessage_example.xml
@@ -70,9 +70,10 @@
                     <StartDate>2023-01-01</StartDate>
                     <EndDate>2025-12-31</EndDate>
                 </ValidityPeriod>
-                <RightsType>ReproductionRight</RightsType>
                 <RightsType>MakeAvailableRight</RightsType>
+                <!-- 
                 <PercentageOfRightsAssignment>100</PercentageOfRightsAssignment>
+                -->
         </Affiliation>
 
         </Party>
diff --git a/DDEX_messages/README.md b/DDEX_messages/README.md
index eccf74b..c0b9696 100644
--- a/DDEX_messages/README.md
+++ b/DDEX_messages/README.md
@@ -70,3 +70,16 @@ All fields are tagged as `<!-- Compulsory -->` or `<!-- Optional -->`.
 `<!-- Compulsory -->` are compulsary fields, and messages will be rejected if they are not included.
 `<!-- Optional -->` can either exist or not.
 `<!-- Needs to exist --> ` is a field that needs to exist in either the private or the public part of the message, but not required on both.
+
+
+## Test validation
+
+For v4.3
+```bash
+curl https://raw.githubusercontent.com/originalworks/protocol/main/DDEX_messages/ERN_NewReleaseMessage_example.xml | xmllint --noout --schema http://ddex.net/xml/ern/43/release-notification.xsd -
+```
+
+For v4.3.1
+```bash
+curl https://raw.githubusercontent.com/originalworks/protocol/main/DDEX_messages/ERN_NewReleaseMessage_example.xml | xmllint --noout --schema http://ddex.net/xml/ern/431/release-notification.xsd -
+```
\ No newline at end of file