diff --git a/tests/data/documents/mixed_config.yaml b/tests/data/documents/mixed_config.yaml
index fb346aa..f3ca058 100644
--- a/tests/data/documents/mixed_config.yaml
+++ b/tests/data/documents/mixed_config.yaml
@@ -25,6 +25,8 @@ mixed_authority:
       section1: test-icd.html.j2
       section2: test-icd.html.j2
     heading_numbering: True
+    text_work_item_type: myType
+    text_work_item_id_field: myId
     work_item_layouts:
       componentExchange:
         fields_at_start:
diff --git a/tests/test_documents.py b/tests/test_documents.py
index 69e046f..5069b46 100644
--- a/tests/test_documents.py
+++ b/tests/test_documents.py
@@ -523,6 +523,10 @@ def test_mixed_authority_document_config():
     }
     assert conf.mixed_authority[1].project_id is None
     assert conf.mixed_authority[1].status_allow_list is None
+    assert conf.mixed_authority[0].text_work_item_type == "text"
+    assert conf.mixed_authority[0].text_work_item_id_field == "__C2P__id"
+    assert conf.mixed_authority[1].text_work_item_type == "myType"
+    assert conf.mixed_authority[1].text_work_item_id_field == "myId"
 
 
 def test_combined_config():
diff --git a/tests/test_polarion_worker_documents.py b/tests/test_polarion_worker_documents.py
index 949ca9f..714847b 100644
--- a/tests/test_polarion_worker_documents.py
+++ b/tests/test_polarion_worker_documents.py
@@ -1,5 +1,6 @@
 # Copyright DB InfraGO AG and contributors
 # SPDX-License-Identifier: Apache-2.0
+from unittest import mock
 
 import polarion_rest_api_client as polarion_api
 
@@ -106,3 +107,36 @@ def test_create_document(
     assert client.work_items.update.call_count == 2
     assert len(client.work_items.update.call_args_list[0].args[0]) == 0
     assert len(client.work_items.update.call_args_list[1].args[0]) == 0
+
+
+def test_use_correct_client(
+    empty_polarion_worker: polarion_worker.CapellaPolarionWorker,
+):
+    empty_polarion_worker.project_client = mock.MagicMock()
+    document = polarion_api.Document(
+        module_folder="_default",
+        module_name="TEST-DOC-A",
+        rendering_layouts=[],
+        home_page_content=polarion_api.TextContent(
+            type="text/html",
+            value="",
+        ),
+    )
+
+    document_data = data_models.DocumentData(
+        document,
+        [],
+        text_work_item_provider.TextWorkItemProvider(),
+    )
+
+    empty_polarion_worker.create_documents([document_data], "OtherProject")
+    empty_polarion_worker.update_documents([document_data], "OtherProject")
+
+    assert len(empty_polarion_worker.project_client.method_calls) == 0
+    assert len(empty_polarion_worker._additional_clients) == 1
+    assert (
+        client := empty_polarion_worker._additional_clients.get("OtherProject")
+    )
+    assert client.documents.update.call_count == 1
+    assert client.documents.create.call_count == 1
+    assert client.work_items.update.call_count == 1