There are two main ways to connect to and import data from SAP systems using Power Query:

1. Native Connectors:

* SAP Business Warehouse (BW): Power Query offers a built-in connector for SAP BW applications. This is the simplest method if your data resides in an SAP BW environment.

Here's how to connect using the SAP BW connector:

* In Power BI Desktop, go to the "Home" tab and select "Get Data" > "SAP Business Warehouse Application Server".
* Enter the server name, system number, and client ID of the SAP BW server.
* Provide your authentication credentials (username and password).
* Select the desired tables or views to import.

* SAP HANA Database: Similarly, Power Query has a dedicated connector for SAP HANA databases.

Here's how to connect using the SAP HANA connector:

* In Power BI Desktop or Excel, go to the "Data" ribbon and select "Get Data" > "SAP HANA database".
* Enter the server name and port of the SAP HANA server.
* Choose the authentication method (Basic) and provide your credentials.
* Select the database schema and tables you want to import.

2. Third-Party Connectors (For more advanced scenarios):

If your data resides in a non-BW SAP system or you require more advanced features, consider third-party connectors. These connectors often provide functionalities like:

* Connecting to various SAP systems: Some connectors support a wider range of SAP systems beyond BW and HANA.
* ODBC Connections: These connectors might allow you to establish connections using ODBC drivers for SAP systems.
* Custom Queries: They might enable building custom queries to interact with SAP data sources.

Here are some popular third-party connector options:

* CData Software: Their Power Query connector offers connections to various SAP systems through OData feeds [https://community.sap.com/t5/technology-q-a/how-to-use-cdata/qaq-p/3422624](https://community.sap.com/t5/technology-q-a/how-to-use-cdata/qaq-p/3422624).
* Informatica PowerCenter: For complex data integration scenarios, Informatica PowerCenter can be used as an intermediary to extract data from SAP and provide a consumable format for Power Query [https://docs.informatica.com/data-integration/powercenter.html](https://docs.informatica.com/data-integration/powercenter.html).

Important Notes:

* Whichever method you choose, you'll likely need credentials with appropriate access to the SAP system and data objects you want to import.
* For both native and third-party connectors, an on-premises data gateway might be required to establish the connection if your data resides on-premise.
* It's advisable to consult with your IT team or SAP administrator for guidance on specific connection details and security considerations for your organization's SAP environment.