diff --git a/l10n_it_edi_extension/__manifest__.py b/l10n_it_edi_extension/__manifest__.py
index 1412f8e00bf4..519cf46da285 100644
--- a/l10n_it_edi_extension/__manifest__.py
+++ b/l10n_it_edi_extension/__manifest__.py
@@ -3,7 +3,7 @@
 
 {
     "name": "Italy - E-invoicing - Base Feature",
-    "version": "17.5.1.0.0",
+    "version": "18.0.1.0.0",
     "category": "Accounting/Localizations/EDI",
     "development_status": "Production/Stable",
     "summary": "E-invoice base feature",
@@ -14,6 +14,7 @@
         "l10n_it_edi",
     ],
     "data": [
+        "data/invoice_it_template.xml",
         "views/l10n_it_view.xml",
     ],
     "installable": True,
diff --git a/l10n_it_edi_extension/data/invoice_it_template.xml b/l10n_it_edi_extension/data/invoice_it_template.xml
new file mode 100644
index 000000000000..a4d59e79bed0
--- /dev/null
+++ b/l10n_it_edi_extension/data/invoice_it_template.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <template id="account_invoice_it_FatturaPA_export_causale" inherit_id="l10n_it_edi.account_invoice_it_FatturaPA_export">
+        <xpath expr="//DatiGeneraliDocumento/ImportoTotaleDocumento" position="after">
+            <t t-foreach="causale" t-as="c">
+                <Causale t-out="c" />
+            </t>
+        </xpath>
+    </template>
+</odoo>
\ No newline at end of file
diff --git a/l10n_it_edi_extension/models/account_move.py b/l10n_it_edi_extension/models/account_move.py
index 00f8d7270f29..6d3caf084b6b 100644
--- a/l10n_it_edi_extension/models/account_move.py
+++ b/l10n_it_edi_extension/models/account_move.py
@@ -2,6 +2,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
 from odoo import api, fields, models
+from odoo.tools import html2plaintext
 
 
 class AccountMoveInherit(models.Model):
@@ -40,3 +41,32 @@ def action_l10n_it_edi_attachment_preview(self):
             "url": self.l10n_it_edi_attachment_preview_link,
             "target": "new",
         }
+
+    # -------------------------------------------------------------------------
+    # Helpers
+    # -------------------------------------------------------------------------
+
+    def _l10n_it_edi_get_values(self, pdf_values=None):
+        res = super()._l10n_it_edi_get_values(pdf_values)
+
+        causale_list = []
+        if self.narration:
+
+            try:
+                narration_text = html2plaintext(self.narration)
+            except Exception:
+                narration_text = ""
+
+            # max length of Causale is 200
+            for causale in narration_text.split("\n"):
+                if not causale:
+                    continue
+                causale_list_200 = [
+                    causale[i : i + 200] for i in range(0, len(causale), 200)
+                ]
+                for causale200 in causale_list_200:
+                    causale_list.append(causale200)
+
+        res["causale"] = causale_list
+
+        return res