How to change credentials in Power Query?

In the dynamic world of data analysis, Microsoft Excel’s Power Query stands out as a formidable tool for extracting, transforming, and loading data seamlessly from various sources. However, as users navigate the diverse landscapes of data repositories, one common challenge they encounter is managing credentials effectively. In this extensive guide, we will dive deep into the intricacies of changing credentials in Power Query, offering a comprehensive, step-by-step walkthrough to empower users in overcoming authentication hurdles.

How can I change credentials in Power Query?

To change credentials in Power Query, open the Power Query Editor, right-click on the query, access Connection Properties, modify credentials, test the connection, and finally, apply the changes. Detailed steps ensure a seamless process for secure data access.

Understanding Power Query Credentials:

Credentials serve as the gateway to unlocking data from various sources securely. Whether connecting to databases, online services, or other data repositories, ensuring the correct credentials is crucial for successful data retrieval and transformation.

In the context of Power Query, credentials usually involve a combination of a username and password. However, different authentication methods may be employed depending on the data source. Power Query supports a variety of authentication methods, including Windows authentication, Anonymous access, and API key-based authentication.

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Step-by-Step Guide to Changing Credentials in Power Query:

1. Open Power Query Editor:

To embark on the journey of changing credentials, launch Microsoft Excel and open the workbook containing your Power Query queries. Navigate to the “Data” tab, and depending on your Excel version, click on “Get Data” or “Get & Transform Data.” Choose the relevant data source from the list to open the Power Query Editor.

2. Access Connection Properties:

With the Power Query Editor at your disposal, identify and select the specific query for which you intend to change credentials. Right-click on the chosen query, and a context menu will appear. Select “Properties” or “Source” based on the version of Excel you are using.

3. Modify Credentials:

Within the Connection Properties or Source window, locate the section labeled “Credentials” or “Authentication.” Click on the “Edit Credentials” button or a similar option based on your data source. Here, you’ll be prompted to input the new username and password or other required authentication details.

4. Testing Connection:

To ensure that your updated credentials are correct, some data sources provide the option to test the connection before applying changes. Take advantage of this feature by clicking on the “Test Connection” or a similar button to verify the accuracy of your credentials.

5. Apply Changes:

Once you have successfully tested the connection, it’s time to apply the changes. Click “OK” or “Apply” to save the modifications and update the credentials for the selected query. This step finalizes the authentication process, ensuring that your Power Query is now equipped with the latest credentials for seamless data access.

External Links for Further Reference:

1. Microsoft Power Query Documentation:

The official documentation for Power Query serves as an invaluable resource for users looking to gain a deeper understanding of its features and functionalities. Explore the documentation to discover advanced capabilities and best practices.

2. Power Query Blog:

Stay abreast of the latest developments, tips, and tricks related to Power Query by regularly checking out the official Power Query Blog. This blog is a dynamic platform that shares insights from the Power Query team and the broader community.

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1. Q: Can I change credentials for multiple queries at once?

  • A: Unfortunately, Power Query does not provide a built-in feature to change credentials for multiple queries simultaneously. Users will need to update credentials for each query individually, ensuring a meticulous approach to maintaining data security.

2. Q: What should I do if my connection test fails after changing credentials?

  • A: In the event of a connection test failure, it’s crucial to double-check the accuracy of the new credentials. Verify that the data source is accessible and consider reaching out to your IT support for further assistance in troubleshooting potential issues.

3. Q: Are there any alternatives to using usernames and passwords for authentication in Power Query?

  • A: Yes, Power Query supports various authentication methods, providing flexibility to users. In addition to traditional username and password authentication, options such as Windows authentication, Anonymous access, and API key-based authentication can be explored based on the specific requirements of the data source.

Going Beyond: Advanced Tips and Strategies

To further enrich your Power Query experience, consider exploring advanced tips and strategies for credential management:

1. Credential Encryption:

  • Explore options for encrypting credentials to enhance security. Power Query allows you to store encrypted credentials securely, providing an additional layer of protection.

2. Parameterization of Credentials:

  • Learn about the advanced technique of parameterizing credentials. This involves using parameters to dynamically manage credentials based on user inputs or other variables, offering a more flexible approach.

3. Credential Refresh Automation:

  • Explore methods for automating the refresh of credentials. Implementing automation ensures that your Power Query queries stay up-to-date with the latest authentication details without manual intervention.

4. Integration with Azure Key Vault:

  • Consider leveraging Azure Key Vault for managing sensitive information such as credentials. Integrating Power Query with Azure Key Vault enhances security by centralizing and managing secrets securely.

5. Monitoring and Logging:

  • Implement robust monitoring and logging mechanisms to track changes to credentials and monitor the overall health of your Power Query connections. This proactive approach helps in identifying and addressing issues promptly.


In conclusion, changing credentials in Power Query is a fundamental skill that empowers users to navigate the complexities of data authentication seamlessly. This comprehensive guide has provided a step-by-step walkthrough, enabling users to confidently update their credentials and ensure a secure and efficient data connection.

As you continue your journey with Power Query, remember to explore the extensive capabilities of the tool and stay updated on the latest developments through the official documentation and Power Query Blog. By mastering the art of credential management in Power Query, you pave the way for enhanced data manipulation and analysis, unlocking the full potential of this powerful data connection technology.