Add missing error message when no bank account is found when parsing UBL invoice

Closes #14938

modules/edocument_ubl/edocument.py

@@ -1357,8 +1357,9 @@ class Invoice_Bank(metaclass=PoolMeta):
                         financial_account, party)
                     account.save()
                 else:
-                    raise InvoiceError(gettext(
-                            'edocument_ubl.msg_account_not_found',
+                    raise InvoiceError(ngettext(
+                            'edocument_ubl.msg_bank_account_not_found',
+                            len(payees),
                             parties=','.join([p.rec_name for p in payees]),
                             account=etree.tostring(
                                 financial_account,

modules/edocument_ubl/message.xml

@@ -24,5 +24,9 @@ this repository contains the full copyright notices and license terms. -->
             <field name="text">Could not find tax for:
 %(tax_category)s</field>
         </record>
+        <record model="ir.message" id="msg_bank_account_not_found">
+            <field name="text">Could not find bank account "%(account)s" for party "%(parties)s".</field>
+            <field name="text_plural">Could not find bank account "%(account)s" for any of the parties "%(parties)s".</field>
+        </record>
     </data>
 </tryton>