diff --git a/addons/account_edi_ubl_cii/models/account_edi_xml_ubl_20.py b/addons/account_edi_ubl_cii/models/account_edi_xml_ubl_20.py
index 06de9681cef..a4a4698822f 100644
--- a/addons/account_edi_ubl_cii/models/account_edi_xml_ubl_20.py
+++ b/addons/account_edi_ubl_cii/models/account_edi_xml_ubl_20.py
@@ -491,7 +491,7 @@ class AccountEdiXmlUBL20(models.AbstractModel):
         sales_order_id = 'sale_line_ids' in invoice.invoice_line_ids._fields \
                          and ",".join(invoice.invoice_line_ids.sale_line_ids.order_id.mapped('name'))
         # OrderReference/ID (order_reference) is mandatory inside the OrderReference node !
-        order_reference = invoice.ref or invoice.name if sales_order_id else invoice.ref
+        order_reference = invoice.ref or invoice.name
 
         vals = {
             'builder': self,
diff --git a/addons/l10n_sa_edi/tests/compliance/simplified/invoice.xml b/addons/l10n_sa_edi/tests/compliance/simplified/invoice.xml
index 4a0ed4d07ca..42918ffc799 100644
--- a/addons/l10n_sa_edi/tests/compliance/simplified/invoice.xml
+++ b/addons/l10n_sa_edi/tests/compliance/simplified/invoice.xml
@@ -9,6 +9,9 @@
   <cbc:DocumentCurrencyCode>SAR</cbc:DocumentCurrencyCode>
   <cbc:TaxCurrencyCode>SAR</cbc:TaxCurrencyCode>
   <cbc:BuyerReference>Mohammed Ali</cbc:BuyerReference>
+  <cac:OrderReference>
+    <cbc:ID>INV/2023/00034</cbc:ID>
+  </cac:OrderReference>
   <cac:AdditionalDocumentReference>
     <cbc:ID>QR</cbc:ID>
     <cac:Attachment>
diff --git a/addons/l10n_sa_edi/tests/compliance/standard/invoice.xml b/addons/l10n_sa_edi/tests/compliance/standard/invoice.xml
index a34768f15e7..165a0d1eaa1 100644
--- a/addons/l10n_sa_edi/tests/compliance/standard/invoice.xml
+++ b/addons/l10n_sa_edi/tests/compliance/standard/invoice.xml
@@ -12,6 +12,9 @@
     <cbc:DocumentCurrencyCode>SAR</cbc:DocumentCurrencyCode>
     <cbc:TaxCurrencyCode>SAR</cbc:TaxCurrencyCode>
     <cbc:BuyerReference>Azure Interior</cbc:BuyerReference>
+    <cac:OrderReference>
+        <cbc:ID>INV/2022/00014</cbc:ID>
+    </cac:OrderReference>
     <cac:AdditionalDocumentReference>
         <cbc:ID>PIH</cbc:ID>
         <cac:Attachment>