Question: What is the key difference between 400- and 500-level errors?
- 400-level errors are usually a user error. 500-level errors are usually with the cloud.
- 400-level errors are usually with the service you’re calling. 500-level errors are usually with the integration itself.
- 400-level errors are usually within the integration itself. 500-level errors are usually with the service you’re calling.
- 400-level errors are usually with the cloud. 500-level errors are usually a user error.
Explanation
A 400-level error usually means the request has a problem created by the integration, such as invalid parameters, missing required values, authentication failure, or insufficient permissions. A 500-level error usually means the service receiving the request has a temporary or internal issue. In Amazon Ads API error handling, client-side problems and server-side problems are separated by status code category. This distinction helps decide whether to fix the request or retry later. Troubleshooting should start by identifying whether the error comes from request construction or service availability.
Why the other options are incorrect
User error This is incomplete because 400-level errors usually come from the request or integration, not only the user.
Service first This reverses the meaning because 400-level errors usually point to the request, while 500-level errors point to the service.
Cloud first This reverses the error categories and mislabels the source of each issue.
Source for verification
https://advertising.amazon.com/API/docs/en-us/reference/concepts/errors
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