diff --git a/addons/pos_adyen/i18n/pos_adyen.pot b/addons/pos_adyen/i18n/pos_adyen.pot
index 4e8d04b58ff..c6b500372c0 100644
--- a/addons/pos_adyen/i18n/pos_adyen.pot
+++ b/addons/pos_adyen/i18n/pos_adyen.pot
@@ -146,6 +146,12 @@ msgstr ""
 msgid "Terminal %s is already used on payment method %s."
 msgstr ""
 
+#. module: pos_adyen
+#: code:addons/pos_adyen/models/pos_payment_method.py:0
+#, python-format
+msgid "Terminal %s is already used in company %s on payment method %s."
+msgstr ""
+
 #. module: pos_adyen
 #: model:ir.model.fields,help:pos_adyen.field_pos_payment_method__adyen_api_key
 msgid ""
diff --git a/addons/pos_adyen/models/pos_payment_method.py b/addons/pos_adyen/models/pos_payment_method.py
index 1e677843023..6b6103ffb18 100644
--- a/addons/pos_adyen/models/pos_payment_method.py
+++ b/addons/pos_adyen/models/pos_payment_method.py
@@ -32,12 +32,19 @@ class PosPaymentMethod(models.Model):
         for payment_method in self:
             if not payment_method.adyen_terminal_identifier:
                 continue
-            existing_payment_method = self.search([('id', '!=', payment_method.id),
+            # sudo() to search all companies
+            existing_payment_method = self.sudo().search([('id', '!=', payment_method.id),
                                                    ('adyen_terminal_identifier', '=', payment_method.adyen_terminal_identifier)],
                                                   limit=1)
             if existing_payment_method:
-                raise ValidationError(_('Terminal %s is already used on payment method %s.')
+                if existing_payment_method.company_id == payment_method.company_id:
+                    raise ValidationError(_('Terminal %s is already used on payment method %s.')
                                       % (payment_method.adyen_terminal_identifier, existing_payment_method.display_name))
+                else:
+                    raise ValidationError(_('Terminal %s is already used in company %s on payment method %s.')
+                                          % (payment_method.adyen_terminal_identifier,
+                                             existing_payment_method.company_id.name,
+                                             existing_payment_method.display_name))
 
     def _get_adyen_endpoints(self):
         return {