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Based on the information provided, it seems like you're having trouble setting up the Amazon Seller Partner source connector in Airbyte due to a credentials error. Here are some steps you can follow to troubleshoot this issue: 1. Ensure that you have correctly set up your Amazon Seller Partner application and it is published. Amazon does not allow external parties such as Airbyte to access draft applications. You can register your application [here](https://developer-docs.amazon.com/sp-api/docs/registering-your-application). 2. Create an IAM user in your AWS environment. You can follow the instructions [here](https://docs.aws.amazon.com/general/latest/gr/aws-sec-cred-types.html) to do so. 3. Make sure you have the following prerequisites: - AWS Environment - AWS Region - AWS Access Key - AWS Secret Key - Role ARN - LWA Client ID (LWA App ID) - LWA Client Secret - Refresh token - Replication Start Date Note: LWA Client ID, LWA Client Secret, and Refresh token are not required for Airbyte Cloud. 4. If you're using Airbyte Cloud, log into your Airbyte Cloud account and set up the source connector following the instructions [here](https://docs.airbyte.com/integrations/sources/amazon-seller-partner). 5. If you're using Airbyte Open Source, generate a refresh token using your developer application from Step 1 and set up the source connector on your local Airbyte page. Remember to provide actionable feedback for incorrect input. For example, if the username/password combination is incorrect, the error message should state so. This will help you identify and resolve the issue more efficiently. If you're still having trouble, please provide more details about the error and the steps you've taken so far. This will help us better understand the issue and provide a more accurate solution.