diff --git a/guides/release-notes/v3.0.13.adoc b/guides/release-notes/v3.0.13.adoc
index df297cd0..1808e693 100644
--- a/guides/release-notes/v3.0.13.adoc
+++ b/guides/release-notes/v3.0.13.adoc
@@ -13,5 +13,9 @@ Release date:: May 2024
 
 == Changes to code lists and validation artefacts
 
+* Added new Swedish rule SE-R-013 for validation of the check number of a Swedish Organization number. The rule is introduced as severity warning. All rules which verifies the format of Organization numbers (SE-R-003, SE-R-004 and SE-R-013) will be changed to severity fatal in next release.
+
+* Update of PEPPOL-COMMON-R049 which validates identifiers using ICD/EAS 0007. The change is adding validation of the check number of a Swedish Organization number.
+
 
 == Other
diff --git a/rules/sch/parts/common.sch b/rules/sch/parts/common.sch
index ea8d7e45..250921f2 100644
--- a/rules/sch/parts/common.sch
+++ b/rules/sch/parts/common.sch
@@ -18,6 +18,7 @@
   <include href="function/mod97-0208.xml"/>
   <include href="function/checkCodiceIPA.xml"/>
   <include href="function/abn.xml"/>  
+  <include href="function/checkSEOrgnr.xml"/>  
 
   <include href="common/empty-elements.sch"/>
   <include href="common/rules.sch"/>
diff --git a/rules/sch/parts/common/rules.sch b/rules/sch/parts/common/rules.sch
index 775d387e..d2a3f30a 100644
--- a/rules/sch/parts/common/rules.sch
+++ b/rules/sch/parts/common/rules.sch
@@ -44,8 +44,8 @@
       <assert id="PEPPOL-COMMON-R048" test="u:checkPIVAseIT(normalize-space())" flag="warning">Italian VAT Code (Partita Iva) must be stated in the correct format</assert>
     </rule>
     <rule context="cbc:EndpointID[@schemeID = '0007'] | cac:PartyIdentification/cbc:ID[@schemeID = '0007'] | cbc:CompanyID[@schemeID = '0007']">
-      <assert id="PEPPOL-COMMON-R049" test="string-length(normalize-space()) = 10 and string(number(normalize-space())) != 'NaN'" flag="fatal">Swedish organization number MUST be stated in the correct format.</assert>     
-    </rule> 
+      <assert id="PEPPOL-COMMON-R049" test="string-length(normalize-space()) = 10 and string(number(normalize-space())) != 'NaN' and u:checkSEOrgnr(normalize-space())" flag="fatal">Swedish organization number MUST be stated in the correct format.</assert>
+    </rule>  	
     <rule context="cbc:EndpointID[@schemeID = '0151'] | cac:PartyIdentification/cbc:ID[@schemeID = '0151'] | cbc:CompanyID[@schemeID = '0151']">
       <assert id="PEPPOL-COMMON-R050" test="matches(normalize-space(), '^[0-9]{11}$') and u:abn(normalize-space())" flag="fatal">Australian Business Number (ABN) MUST be stated in the correct format.</assert>
     </rule> 
diff --git a/rules/sch/parts/function/checkSEOrgnr.xml b/rules/sch/parts/function/checkSEOrgnr.xml
new file mode 100644
index 00000000..91af2624
--- /dev/null
+++ b/rules/sch/parts/function/checkSEOrgnr.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+   <!-- Function for Swedish organisation numbers (0007) -->
+  <function xmlns="http://www.w3.org/1999/XSL/Transform" name="u:checkSEOrgnr" as="xs:boolean">
+    <param name="number" as="xs:string"/>
+	<choose>
+		<!-- Check if input is numeric -->
+		<when test="not(matches($number, '^\d+$'))">
+			<sequence select="false()"/>
+		</when>
+		<otherwise>
+			<!-- verify the check number of the provided identifier according to the Luhn algorithm-->
+			<variable name="mainPart" select="substring($number, 1, 9)"/>
+			<variable name="checkDigit" select="substring($number, 10, 1)"/>
+			<variable name="sum" as="xs:integer">
+			  <value-of select="sum(
+						for $pos in 1 to string-length($mainPart) return 
+							if ($pos mod 2 = 1) 
+							then (number(substring($mainPart, string-length($mainPart) - $pos + 1, 1)) * 2) mod 10 + 
+								 (number(substring($mainPart, string-length($mainPart) - $pos + 1, 1)) * 2) idiv 10 
+							else number(substring($mainPart, string-length($mainPart) - $pos + 1, 1))
+					)"/>
+			</variable>
+			<variable name="calculatedCheckDigit" select="(10 - $sum mod 10) mod 10"/>
+			<sequence select="$calculatedCheckDigit = number($checkDigit)"/>
+		</otherwise>
+	</choose>
+  </function>
diff --git a/rules/unit-common/PEPPOL-COMMON-R049.xml b/rules/unit-common/PEPPOL-COMMON-R049.xml
index 7aeb82ed..c5144325 100644
--- a/rules/unit-common/PEPPOL-COMMON-R049.xml
+++ b/rules/unit-common/PEPPOL-COMMON-R049.xml
@@ -16,7 +16,7 @@
 			xmlns="urn:oasis:names:specification:ubl:schema:xsd:Order-2">
 			<cac:BuyerCustomerParty>
 				<cac:Party>
-					<cbc:EndpointID schemeID="0007">5533221144</cbc:EndpointID>
+					<cbc:EndpointID schemeID="0007">2021005489</cbc:EndpointID>
 				</cac:Party>
 			</cac:BuyerCustomerParty>
 		</Order>
@@ -55,5 +55,18 @@
 		</Order>
 	</test>
     
-	
+	<test>
+		<assert>
+			<error>PEPPOL-COMMON-R049</error>
+		</assert>
+   		<Order xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
+			xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2"
+			xmlns="urn:oasis:names:specification:ubl:schema:xsd:Order-2">
+			<cac:BuyerCustomerParty>
+				<cac:Party>
+					<cbc:EndpointID schemeID="0007">2021005480</cbc:EndpointID>
+				</cac:Party>
+			</cac:BuyerCustomerParty>
+		</Order>
+	</test>
 </testSet>