diff --git a/passerelle/apps/esabora/models.py b/passerelle/apps/esabora/models.py
index ce591548..1fc786cc 100644
--- a/passerelle/apps/esabora/models.py
+++ b/passerelle/apps/esabora/models.py
@@ -72,7 +72,7 @@ class Esabora(BaseResource, HTTPResource):
         url = urllib.parse.urljoin(self.service_url, path)
         headers = {'Authorization': f'Bearer {self.api_key}'}
         try:
-            return self.requests.post(url, json=payload, headers=headers, timeout=5, **kwargs)
+            response = self.requests.post(url, json=payload, headers=headers, timeout=5, **kwargs)
         except requests.RequestException as e:
             raise APIError(
                 'Esabora platform "%s" connection error: %s' % (self.service_url, exception_to_text(e)),
@@ -83,6 +83,26 @@ class Esabora(BaseResource, HTTPResource):
                     'error': str(e),
                 },
             )
+        try:
+            data = response.json()
+        except requests.JSONDecodeError as e:
+            raise APIError(
+                'Esabora platform "%s" invalid JSON response: %s' % (self.service_url, exception_to_text(e)),
+                log_error=True,
+                data={
+                    'status_code': response.status_code,
+                },
+            )
+        if not response.ok:
+            raise APIError(
+                'Esabora platform "%s" answered with HTTP error' % (self.service_url),
+                log_error=True,
+                data={
+                    'status_code': response.status_code,
+                    'content': data,
+                },
+            )
+        return data
 
     @endpoint(
         name='do-search',
@@ -100,9 +120,7 @@ class Esabora(BaseResource, HTTPResource):
                 for name, value in post_data['criterions'].items()
             ],
         }
-        response = self.post('mult/', payload, params={'task': 'doSearch'})
-        response.raise_for_status()
-        data = response.json()
+        data = self.post('mult/', payload, params={'task': 'doSearch'})
         columns = {slugify(c).replace('-', '_'): c for c in data['columnList']}
         keys = {slugify(c).replace('-', '_'): c for c in data['keyList']}
         cleaned_data = {
@@ -130,9 +148,7 @@ class Esabora(BaseResource, HTTPResource):
         endpoint = post_data.pop('endpoint', None) or 'modbdd'
         payload = get_treatment_payload(post_data)
 
-        response = self.post(f'{endpoint}/', payload, params={'task': 'doTreatment'})
-        response.raise_for_status()
-        data = response.json()
+        data = self.post(f'{endpoint}/', payload, params={'task': 'doTreatment'})
         keys = [slugify(c).replace('-', '_') for c in data['keyList']]
         cleaned_data = esabora_row_to_object([], keys, data)
         cleaned_data['action'] = data['action']
diff --git a/tests/test_esabora.py b/tests/test_esabora.py
index f13a6c52..07d6479b 100644
--- a/tests/test_esabora.py
+++ b/tests/test_esabora.py
@@ -245,3 +245,31 @@ def test_do_treatment_arbitrary_endpoint(app, connector):
     assert responses.calls[0].request.params['task'] == 'doTreatment'
     response_data = json.loads(responses.calls[0].request.body)
     assert response_data == expected_payload
+
+
+@responses.activate
+def test_post_raises_proper_error(app, connector):
+    url = tests.utils.generic_endpoint_url('esabora', 'do-treatment')
+    responses.add(
+        responses.POST,
+        f'{connector.service_url}addevt/',
+        json={'foo': 'bar'},
+        status=400,
+    )
+
+    payload = {
+        'endpoint': 'addevt',
+        'treatment_name': 'Import Event',
+        'Adresse_Latitude': 12.3,
+        'Adresse_Ville': 'Marseille',
+    }
+
+    expected_response = {
+        'err': 1,
+        'err_class': 'passerelle.utils.jsonresponse.APIError',
+        'data': {'content': {'foo': 'bar'}, 'status_code': 400},
+        'err_desc': 'Esabora platform "http://example.esabora/ws/rest/" answered with HTTP error',
+    }
+
+    response = app.post_json(url, params=payload)
+    assert response.json == expected_response