diff --git a/python-sync-actions/src/configuration.py b/python-sync-actions/src/configuration.py
index 5984f37..d49bea3 100644
--- a/python-sync-actions/src/configuration.py
+++ b/python-sync-actions/src/configuration.py
@@ -158,10 +158,10 @@ def search_dict(d):
     return results
 
 
-def _remove_auth_from_dict(dictionary: dict, to_remove: list) -> dict:
+def _remove_auth_from_dict(dictionary: dict, to_remove: list, auth_method: str) -> dict:
     filtered_dict = {}
     for key, value in dictionary.items():
-        if isinstance(value, dict):
+        if isinstance(value, dict) and auth_method == 'bearer':
             if key != 'Authorization':
                 filtered_value = _remove_auth_from_dict(value, to_remove)
                 if filtered_value:
@@ -189,8 +189,11 @@ def convert_to_v2(configuration: dict) -> list[Configuration]:
     default_headers_org = api_json.get('http', {}).get('headers', {})
     default_query_parameters_org = api_json.get('http', {}).get('defaultOptions', {}).get('params', {})
 
-    default_headers = _remove_auth_from_dict(default_headers_org, _return_ui_params(configuration))
-    default_query_parameters = _remove_auth_from_dict(default_query_parameters_org, _return_ui_params(configuration))
+    auth_method = configuration.get('config').get('__AUTH_METHOD')
+
+    default_headers = _remove_auth_from_dict(default_headers_org, _return_ui_params(configuration), auth_method)
+    default_query_parameters = _remove_auth_from_dict(default_query_parameters_org, _return_ui_params(configuration),
+                                                      auth_method)
 
     pagination = {}
     if api_json.get('pagination', {}).get('scrollers'):
@@ -380,7 +383,7 @@ def convert(cls, config_parameters: dict) -> Authentication | None:
         auth_method = config_parameters.get('config', {}).get('__AUTH_METHOD', None)
         # or take it form the authentication section
         auth_method = auth_method or config_parameters.get('api', {}).get('authentication', {}).get('type')
-        if not auth_method:
+        if not auth_method or auth_method == 'custom':
             return None
 
         methods = {
diff --git a/python-sync-actions/tests/calls/010-default-header/config.json b/python-sync-actions/tests/calls/010-default-header/config.json
new file mode 100644
index 0000000..9b5af2e
--- /dev/null
+++ b/python-sync-actions/tests/calls/010-default-header/config.json
@@ -0,0 +1,57 @@
+{
+  "storage": {},
+  "parameters": {
+        "__SELECTED_JOB": "0",
+
+  "config": {
+    "jobs": [
+      {
+        "__NAME": "orders",
+        "endpoint": "010-default-header/orders",
+        "method": "GET",
+        "dataType": "",
+        "dataField": "nested.orders"
+      }
+    ],
+    "test": "test-value",
+    "concat": {
+      "function": "concat",
+      "args": [
+        "hello",
+        "-world"
+      ]
+    },
+    "debug": false,
+    "outputBucket": "in.c-",
+    "incrementalOutput": false,
+    "#BEARER_TOKEN": "token"
+  },
+  "api": {
+    "baseUrl": "http://mock-server:80/",
+    "http": {
+      "headers": {
+          "Authorization": {
+            "attr": "#BEARER_TOKEN"
+          }
+        }
+    }
+  },
+  "http": {
+    "maxRetries": 10,
+    "codes": [
+      500,
+      502,
+      503,
+      504,
+      408,
+      420,
+      429
+    ]
+  }
+},
+  "action": "test_request",
+  "image_parameters": {
+  },
+  "authorization": {
+  }
+}
diff --git a/python-sync-actions/tests/calls/010-default-header/orders.request b/python-sync-actions/tests/calls/010-default-header/orders.request
new file mode 100644
index 0000000..340f045
--- /dev/null
+++ b/python-sync-actions/tests/calls/010-default-header/orders.request
@@ -0,0 +1 @@
+GET /010-default-header/orders
\ No newline at end of file
diff --git a/python-sync-actions/tests/calls/010-default-header/orders.requestHeaders b/python-sync-actions/tests/calls/010-default-header/orders.requestHeaders
new file mode 100644
index 0000000..2726203
--- /dev/null
+++ b/python-sync-actions/tests/calls/010-default-header/orders.requestHeaders
@@ -0,0 +1,2 @@
+accept: */*
+authorization: Bearer token
diff --git a/python-sync-actions/tests/calls/010-default-header/orders.response b/python-sync-actions/tests/calls/010-default-header/orders.response
new file mode 100644
index 0000000..71d78ff
--- /dev/null
+++ b/python-sync-actions/tests/calls/010-default-header/orders.response
@@ -0,0 +1,82 @@
+{
+  "nested": {
+    "orders": [
+      {
+        "id": 1,
+        "customer": "John Doe",
+        "address": "123 Main St",
+        "items": [
+          {
+            "id": 1,
+            "name": "Widget",
+            "price": 9.99,
+            "quantity": 2
+          },
+          {
+            "id": 2,
+            "name": "Thing",
+            "price": 5.99,
+            "quantity": 5
+          }
+        ]
+      },
+      {
+        "id": 2,
+        "customer": "Jan Novak",
+        "address": "123 Main St",
+        "items": [
+          {
+            "id": 1,
+            "name": "Widget",
+            "price": 9.99,
+            "quantity": 2
+          },
+          {
+            "id": 2,
+            "name": "Thing",
+            "price": 5.99,
+            "quantity": 5
+          }
+        ]
+      },
+      {
+        "id": 3,
+        "customer": "Jana Novakova",
+        "address": "123 Main St",
+        "items": [
+          {
+            "id": 1,
+            "name": "Widget",
+            "price": 9.99,
+            "quantity": 2
+          },
+          {
+            "id": 2,
+            "name": "Thing",
+            "price": 5.99,
+            "quantity": 5
+          }
+        ]
+      },
+      {
+        "id": 4,
+        "customer": "Bob Smith",
+        "address": "123 Main St",
+        "items": [
+          {
+            "id": 1,
+            "name": "Widget",
+            "price": 9.99,
+            "quantity": 2
+          },
+          {
+            "id": 2,
+            "name": "Thing",
+            "price": 5.99,
+            "quantity": 5
+          }
+        ]
+      }
+    ]
+  }
+}
\ No newline at end of file