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+---
+title: Managing App data access
+weight: 66
+last_reviewed_on: 2024-11-21
+review_in: 12 months
+owner_slack: "#analytical-platform-support"
+owner_slack_workspace: "mojdt"
+---
+
+<%= partial 'documentation/apps/managing-app-data-access' %>
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+# Managing data access for your app
+
+The processing for giving your App access to data is slightly different depending on whether your data is in a warehouse data source or webapp data source.
+
+## App access to a Webapp data source
+
+First create a webapp data source following the instructions in [Amazon S3](/data/amazon-s3.html) section. To give your app access to the files in your webapp data source bucket:
+
+1.  Go to the Analytical Platform [control panel](https://controlpanel.services.analytical-platform.service.justice.gov.uk/).
+2.  Select the __Webapps__ tab.
+3.  Click Manage App next to your App.
+4.  Scroll to App data sources at the bottom and choose the relevant webapp data source from below `Connect an app data source`.
+
+## App access to a Warehouse data source
+
+To give your app access to the files in your warehouse data source bucket:
+
+1.  Go to the [data-engineering-database-access GitHub repository](https://github.com/moj-analytical-services/data-engineering-database-access).
+2.  Follow the instructions to create the database access and project access files.
+3.  Under users in the project access yaml file list your app name (it should start with `alpha_app_`).
+4.  Submit a PR and wait for it to be merged.
+
+## Athena query permissions
+
+> Note: the data used to build your Athena table must be located in a webapp or warehouse data source the App has access to as described above.
+
+If your app needs access to run Athena queries you will need to do the following as well.
+
+1.  Go to the [data-engineering-database-access GitHub repository](https://github.com/moj-analytical-services/data-engineering-database-access).
+2.  Go to the [db_app_policies.py](https://github.com/moj-analytical-services/data-engineering-database-access/blob/main/scripts/db_app_policies.py) file.
+3.  Add your app under `app_policies` using the following template:
+
+
+    ```
+    {
+        "role": "alpha_app_app-name",  # app role
+        "glue_resources": [
+            "database/dbname",
+            "table/dbname/*",
+        ],
+        "write": False,  # Can it edit the above schemas (True or False)
+        "ctas": True,  # Does it use CTAS in pydbtools (True or False)
+    },
+    ```
+   
+ 
+4.  Set write to be `True` if it needs to write to an Athena table
+5.  Submit a PR and wait for it to be merged.