diff --git a/ext/custom-addons/dp_custom/models/res_partner.py b/ext/custom-addons/dp_custom/models/res_partner.py
index 497d8033..aca88d26 100644
--- a/ext/custom-addons/dp_custom/models/res_partner.py
+++ b/ext/custom-addons/dp_custom/models/res_partner.py
@@ -169,7 +169,9 @@ class Partner(models.Model):
                 })
                 portal_url = tools.config.get('portal_url')
                 application_id = tools.config.get('portal_secret')
-                requests.post(portal_url + '/customer/api/v1/set-discounts/?secret=' + application_id, data=json.dumps(data))
+                response = requests.post(portal_url + '/api/v1/set-discounts/?secret=' + application_id, data=json.dumps(data))
+                if response.status_code != 200:
+                    raise ValidationError(_('Rabatt konnte nicht gesetzt werden.'))
 
 
 class PartnerSector(models.Model):