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Asked: 2026-06-01T21:24:58+00:00

I’m a student working on a project related to SEO; I need to write

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I’m a student working on a project related to SEO; I need to write an optimization tool, so I’m writing an application using C# and Windows Forms. The main part of the application is for keyword selection, and I want to use the Google AdWords API to obtain a list of keywords.

I downloaded the C# client library, but can’t understand how to set up the project: I am getting the error:

“An API exception has occurred. See ApiExecption and InnerException fields for more details”.

Maybe I have made a mistake when I edited the App.config file as I haven’t changed anything else. Can anyone advise me where I should begin? I would be grateful to hear your ideas.

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  1. Editorial Team

    You could use the sandbox, but it is good only for testing purposes. You won’t get real values for traffic estimation and keyword ideas.

    To use the sandbox, what you need is a Google account (your gmail account for instance). To initialize the sandbox,

    1. In your App.config, put email/password/developerToken as your email / your password / youremail++USD (e.g. john.doe@gmail.com++USD)

    2. Run the GetCampaigns.cs code example. It is under v201109/BasicOperations folder in the C# examples project. This will initialize the sandbox.

    3. Run the GetAccountHierarchy.cs code example. It is under v201109/AccountManagement folder. This will give you 5 client emails and their customer ids.

    4. Use one of these customerIds in the ClientCustomerId field of App.config.

    5. Run any other code example.

    The video is a bit outdated, due to recent changes in AdWords API, I need to update it.

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