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Responses can include a warnings parameter to notify the developer of best practices, implementation suggestions or deprecation warnings. While you don't need show warnings to the user, they are usually something you need to act on so it's recommended that you add them to admin email alerts.

Example warning

"warnings": [
"id": "missing_version",
"message": "Please supply API version (YYYY-MM-DD) as CB-Version header",
"url": ""

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