You will need the right user roles on your instance to change the service connection, but you can follow these steps:
- Sign into your organization and select your project.
- Select Project settings > Service connections.
- Select the service connection that you want to edit.
- See the Overview tab of the service connection where you can see the details of the service connection.
- Select Edit in the upper-right corner, and then make any change to your service connection.
- Select Save to save the service connection.
You can use the following resources to learn more: