diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23cdc12..4859204 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,7 +20,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 * Log message missing model deployment ID [#59]
+* Expose a Dataset's `validationMessage` in `DatasetValidationFailed` [#33], [#69]
 
+[#33]: https://github.com/SAP/data-attribute-recommendation-python-sdk/issues/33
 [#46]: https://github.com/SAP/data-attribute-recommendation-python-sdk/issues/46
 [#58]: https://github.com/SAP/data-attribute-recommendation-python-sdk/pull/58
 [#59]: https://github.com/SAP/data-attribute-recommendation-python-sdk/pull/59
@@ -28,6 +30,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#63]: https://github.com/SAP/data-attribute-recommendation-python-sdk/pull/63
 [#64]: https://github.com/SAP/data-attribute-recommendation-python-sdk/pull/64
 [#66]: https://github.com/SAP/data-attribute-recommendation-python-sdk/pull/66
+[#69]: https://github.com/SAP/data-attribute-recommendation-python-sdk/pull/69
 
 ## [0.6.8]
 
diff --git a/sap/aibus/dar/client/data_manager_client.py b/sap/aibus/dar/client/data_manager_client.py
index 994a62b..32b7b9f 100644
--- a/sap/aibus/dar/client/data_manager_client.py
+++ b/sap/aibus/dar/client/data_manager_client.py
@@ -270,8 +270,11 @@ class DataManagerClient(BaseClientWithSession):
             raise new_exception from exception
 
         if self.is_dataset_validation_failed(response):
-            msg = "Validation for Dataset '{}' failed with status: '{}'".format(
-                response["id"], response["status"]
+            msg = (
+                "Validation for Dataset '{}' failed with status '{}' and"
+                " validation message: '{}'".format(
+                    response["id"], response["status"], response["validationMessage"]
+                )
             )
             self.log.error(msg)
             raise DatasetValidationFailed(msg)

Expose validationMessage in DatasetValidationFailed
Having an error message as follows is not good enough:

```
sap.aibus.dar.client.exceptions.DatasetValidationFailed: Validation for Dataset '0992af67-bf6e-4b8c-b45c-76078e1e6eff' failed with status: 'INVALID_DATA'
```

We should additionally show the validationMessage from the DM API response or perhaps the entire API response.
diff --git a/tests/sap/aibus/dar/client/test_data_manager_client.py b/tests/sap/aibus/dar/client/test_data_manager_client.py
index 0208efd..08a398a 100644
--- a/tests/sap/aibus/dar/client/test_data_manager_client.py
+++ b/tests/sap/aibus/dar/client/test_data_manager_client.py
@@ -456,6 +456,9 @@ class TestDataManagerClientDatasetSchema:
 
             dataset_response = self._make_dataset_response(bad_dataset_state)
 
+            if bad_dataset_state == "VALIDATION_FAILED":
+                dataset_response["validationMessage"] = "Detailed Description"
+
             client.session.get_from_endpoint.return_value.json.side_effect = [
                 dataset_response
             ]
@@ -466,8 +469,10 @@ class TestDataManagerClientDatasetSchema:
                 )
             expected_message = (
                 "Validation for Dataset "
-                "'{}' failed with status: '{}'".format(
-                    dataset_response["id"], bad_dataset_state
+                "'{}' failed with status '{}' and validation message: '{}'".format(
+                    dataset_response["id"],
+                    bad_dataset_state,
+                    dataset_response["validationMessage"],
                 )
             )
 

pip install -e .[dev]
parse_log_pytest
requirements.txt
pytest pytest-cov
apt-get update apt-get install -y gcc
3.7
requirements.txt requirements-test.txt
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
certifi @ file:///croot/certifi_1671487769961/work/certifi
chardet==3.0.4
coverage==7.2.7
-e git+https://github.com/SAP/data-attribute-recommendation-python-sdk.git@efa9a5a9ff52575d641f8c5290ecde5133870cd6#egg=data_attribute_recommendation_sdk
distlib==0.3.9
exceptiongroup==1.2.2
filelock==3.12.2
idna==2.10
importlib-metadata==1.7.0
iniconfig==2.0.0
packaging==24.0
platformdirs==2.6.1
pluggy==0.13.1
py==1.11.0
pytest==7.4.4
pytest-cov==4.1.0
requests==2.23.0
six==1.17.0
toml==0.10.2
tomli==2.0.1
tox==3.14.5
typing-extensions==3.7.4.1
urllib3==1.25.11
virtualenv==20.16.2
zipp==3.15.0

name: data-attribute-recommendation-python-sdk
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - ca-certificates=2025.2.25=h06a4308_0
  - certifi=2022.12.7=py37h06a4308_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.4.4=h6a678d5_1
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - pip=22.3.1=py37h06a4308_0
  - python=3.7.16=h7a1cb2a_0
  - readline=8.2=h5eee18b_0
  - setuptools=65.6.3=py37h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - wheel=0.38.4=py37h06a4308_0
  - xz=5.6.4=h5eee18b_1
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - chardet==3.0.4
      - coverage==7.2.7
      - distlib==0.3.9
      - exceptiongroup==1.2.2
      - filelock==3.12.2
      - idna==2.10
      - importlib-metadata==1.7.0
      - iniconfig==2.0.0
      - packaging==24.0
      - platformdirs==2.6.1
      - pluggy==0.13.1
      - py==1.11.0
      - pytest==7.4.4
      - pytest-cov==4.1.0
      - requests==2.23.0
      - six==1.17.0
      - toml==0.10.2
      - tomli==2.0.1
      - tox==3.14.5
      - typing-extensions==3.7.4.1
      - urllib3==1.25.11
      - virtualenv==20.16.2
      - zipp==3.15.0
prefix: /opt/conda/envs/data-attribute-recommendation-python-sdk

tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_wait_for_validation_raises_if_validation_fails
tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_constructor tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_constructor_enforces_https tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_create_from_credentials_positional_args tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_create_from_credentials_keyword_args tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_create_from_credentials_enforces_https tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_create_from_service_key tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_create_from_service_key_enforces_https tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_create_from_jwt tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientConstruction::test_create_from_jwt_enforces_https tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_read_dataset_schema_collection tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_read_datasets_collection tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_read_dataset_schema_by_id tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_read_dataset_by_id tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_delete_dataset_by_id tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_delete_dataset_schemas_by_id tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_create_dataset_schema tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_create_dataset tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_upload_data_to_dataset tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_upload_data_to_dataset_refuses_strings tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_wait_for_dataset_validation_uses_polling tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_wait_for_dataset_validation tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_wait_for_dataset_validation_returns_if_initial_state_is_final tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_wait_for_dataset_validation_handles_timeout tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_wait_for_dataset_validation_refuses_invalid_initial_state tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_is_dataset_validation_finished tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_is_dataset_validation_failed tests/sap/aibus/dar/client/test_data_manager_client.py::TestDataManagerClientDatasetSchema::test_upload_data_to_dataset_and_wait_for_validation
sap/aibus/dar/client/data_manager_client.py CHANGELOG.md
sap/aibus/dar/client/data_manager_client.py CHANGELOG.md